The below graph illustrates the concept of the state of charge and charging efficiency. Only 7 left in stock - order soon. Ridgid 140315001 12V Single Port 1 Hour Battery Charger is the type of a charger that is compatible with Ridgid 130377001 24-Volt Li-ion Battery. Wet Tile Saw with Stand, 4 Gallon 5.0 Peak HP Portable Wet/Dry Shop Vacuum with Fine Dust Filter, Locking Hose and Accessories, 6 Gal. The effect of temperature on charge voltage is less critical in float applications than in cyclic use, where relatively high charge currents are applied for the purpose of short recharge times. In Stock at Store Today. Registration required. Subscribe to the RIDGID Pipeline enewsletter, View All Diagnostics, Inspection & Locating, 18V MAX Output 4.0 Ah Battery and Charger Starter Kit, Dual Port Charger It turns out that they are legit products and you can purchase with no fear of getting scammed or fearing the products to be ineffective. For convenience purposes and to make everything easy below is a review of a Ridgid charger that you need to consider for various reasons. Free parts. The RBRC (Rechargeable Battery Recycling Corporation) has members in every major city in the United States. Please enable javascript for a better user experience. Manufactured using the latest technology and stringent quality control, our battery products are designed to exceed in performance and reliability. RIDGID'S Lifetime Service Agreement: Free batteries. Please visit us for all of your electronic needs. Dual Bevel Sliding Miter Saw with 70 Deg. This is another Ridgid Lithium-ion replacement battery that is genuine and built to satisfy all users battery wants. Well, Ridgid Genuine OEM R840087 18V Hyper Lithium-Ion 4AH Single Battery is built with a Hyper Lithium-Ion Technology that makes the battery perform effectively than other batteries. Exclusive. RIDGID Power Tool Batteries . All batteries lose capacity through self-discharge, it is recommended that a top up charge be applied to any battery that has been stored for a long period of time, prior to putting the battery into service. This is one of the best batteries you can ever trust as someone who is after quality. Whether you are a DIYer, Hobbyist, or professional contractors such as electricians and plumbers, I will provide you all the latest news and professional reviews for all your favorite tools and Brands. Free service. #4. Besides, the Ridgid products reviewed here have been tested and confirmed that they work great and effectively. Get free shipping on qualified RIDGID 18v Power Tool Batteries products or Buy Online Pick Up in Store today in the Tools Department. The initial charge current, however, must not exceed 0.30 x C amps. The voltage, capacity, and physical dimensions of this high quality battery are nearly identical to the Kohler Power Systems FM12180 battery used in Kohler Power Systems portable generators. Hopefully the can send you one. 1.55lbs. 2000-2022 Home Depot. Shop Mighty Max Battery 12V 18AH GEL Replacement Battery for FM12180 Rechargeable Sealed Gel 12180 Backup Power Batteries in the Device Replacement Batteries department at Lowe's.com. Compare 18V 2.0 Ah MAX Output Battery. Shop Mighty Max Battery 12V 18AH SLA Battery for Sealake FM12170E Rechargeable Sealed Lead Acid 12180 Backup Power Batteries in the Device Replacement Batteries department at Lowe's.com. This article suggests guidelines for power tool care and maintenance. Ridgid Genuine OEM R86092 Dual Chemistry 18V Lithium-ion / NiCad Battery Charger is equipped with LED indicators that enable you to know whether your battery is charging or not. Strings of lead acid batteries, up to 48 volts and higher, may be charged in series safely and efficiently. Usually ships within 3 to 4 days. These features plus other minor ones make the battery inevitable. The battery comes with a 3-year limited warranty making it very convenient and ideal for everyone. The other advantage of the mounts is that it reduces accidents that may result from the charger getting stumbled had it been placed on the floor where people make movements. Local store prices may vary from those displayed. the U.S. and other countries where applicable. Temperature compensation is desirable in the charging circuit, especially when operating outside the range of 5C to 35C(41F to 95F). 12 Volt 18 Ah Sealed Lead Acid Rechargeable Battery with Nut & Bolt Terminals. Shop Now The recommended constant float voltage is 2.25 2.30 volts per cell. please feel free to contact us. In a taper current charging circuit, the current decreases in proportion to the voltage rise. All Rights Reserved. Very convenient. No wire harness or mounting accessories included. SUBSCRIBE TO THE RIDGID PIPELINE ENEWSLETTER, Click to view our Accessibility Policy and contact us with accessibility-related questions, View All Diagnostics, Inspection & Locating, Compatible with Previous RIDGID 18V Lithium Batteries, Compatible with Previous RIDGID 18V Lithium Battery Charger, 18V Advanced Lithium Batteries and Charger, Built-in LED indicators for battery charge status and temperature monitoring, Passive convection cooling (no fan) design to prevent over-heating, Car charging capability with d.c. charging cord, Provides protection against short-circuit, over-current and over-discharge protection as well as cell balancing, Can deliver more than 250 presses per charge (0.5" Cu), Maximize tool uptime with RIDGID's 18V Lithium 5.0 Ah Battery, 5.0 Ah battery keeps you working on the job even longer, Can deliver more than 500 presses per charge (0.5" Cu). Need Help? Comes with a one year warranty and a 30-day money-back guarantee. Delivering power when you need it, the Mighty Max ML18-12GEL 12-Volt 18 Ah (maintenance free) battery. At high rates of overcharge a battery will progressively heat up. Monitoring of charge voltage or limiting of charge time is necessary to avoid excessive overcharge of the battery. In stock. 18V 6-Port Sequential Charger AC86096 Buy Now. (OBSOLETE), Dual Chemistry Charger Have comments or questions? RIDGID Tools are backed by the best coverage in the industry. If there is no response, even to charge voltages above recommended levels, the battery may have been in a discharged state for too long to recover, and in which case a replacement SLA battery will be needed. Shop with confidence when you buy repair parts directly from RIDGID. Copyright 2023 Battery Universe All Rights Reserved. {{filteredImages().indexOf(gallerySelectedImage) + 1}}/{{filteredImages().length}}, RIDGID 18V Lithium Batteries maximize tool uptime keeping you working on the job even longer. MIGHTY MAX BATTERY12-Volt 35 Ah Sealed Lead Acid (SLA) Rechargeable Battery. When this occurs, leave the charger connected to the battery. Ridgid 18 volt Battery Replacement: Genuine OEM R840087 4AH, #2. Please call us at: 1-800-HOME-DEPOT (1-800-466-3337), Please enter in your email address in the following format: you@domain.com. Choose a symptom to view parts that fix it. Dewalt vs Milwaukee Impact Wrench and Drill Driver and Circular Saw Comparison, Bosch vs Dewalt Hammer Drill and Impact Driver and Table Saw Comparison. During the refurbishment process, the company activated a hands-on activity that saw it test the functionality of the battery, cleaned it, inspected it thoroughly, and finally carried out repacking. Being in the last position in the list doesnt guarantee inferiority. Maintaining this float voltage will allow the battery to define its own current level and remain fully charged without having to disconnect the charger from the battery. Battery Universe is a trusted online business since 1999, At Battery Universe we accept payment with most major credit cards include MasterCard, VISA, American Express and Discover, Ridgid 6800 Watt RD906812B Single Station Battery Charger. At low temperatures, however, charge efficiency is reduced; at temperatures above 45C (113F), charge efficiency increases so rapidly that there is a danger of thermal runaway if temperature compensation is not precise. As with cycle chargers, care must be taken not to exceed the initial charge current of 0.30 x C amperes. The rigid 18 Volts battery is commonly used among people and there is a need to clearly address how its compatible with other devices such as chargers. Mounting is, however, optionally. Top subscription boxes right to your door, 1996-2023, Amazon.com, Inc. or its affiliates. This means we recommend using a sealed lead acid battery charger, like the the A-C series of SLA chargers from Power Sonic, when charging a sealed lead acid battery. The model number of this battery is BW 1280 F1. As a result of too high a charge voltage excessive current will flow into the battery, after reaching full charge, causing decomposition of water in the electrolyte and premature aging. #1 Home Improvement Retailer. There are two criteria for determining when a battery is fully charged: (1) the final current level and (2) the peak charging voltage while this current flows. The discharged batteries should be charged before connection. Privacy Policy Delivering power when you need it, the Mighty Max ML18-12 12 Volt 18 AH uses a state of the art, heavy-duty, calcium-alloy grid exceptional performance in both float and cyclic applications. This is because the battery can perform excellently even in very low-temperature zones up to -20 degrees Fahrenheit. Inaccurate voltage settings can cause either over-charge or under-charge. The capacity of the battery is measured in amp hours (Ah), and this is a 8Ah battery. The RBRC (Rechargeable Battery Recycling Corporation) has members in every major city in the United States. Battery Type. This battery is the AGM variant. (0.70 kg) Compatible with Previous RIDGID 18V Lithium Batteries. Having such information will help you to use the battery with the right devices hence, reducing or avoiding erroneous activities. However, when you are using this charger, through the LED lights, you can be notified in case the battery has flaws. Ridgid 6800 Watt RD906812B replacement generator battery is designed to meet or exceed the original Ridgid 6800 Watt RD906812B in quality, durability, and performance. B4489GS, 193043GS, 12V18AH-X, CP12180D, CP12180X, 750400001, FM12180 Replacement Battery 12v 18ah S CP12180 Sealed AGM for Generac, Briggs & Stratton, CPE Auto, Ridgid Generators 17 ah, 17.2 ah, 17.5 ah, 18 ah. Its undefeated capability has been seen in most of its batteries also. The previous section was a comprehensive list of the top 5 best Ridgid Battery replacement. They are crucial for integrating renewable energy, kee. So, were thinking, what another great way to inform you about the best replacement batteries on the market than a detailed, Back when house cleaning was such a difficult job, homemakers and helpers spent half of their energies keeping the house tidy and presentable. Constant current charging is suited for applications where discharged ampere-hours of the preceding discharge cycle are known. In normal conditions, it only takes 30 minutes for the charger to fully recharge your battery. Use of this site is subject to certain Terms Of Use. Selecting the appropriate charging method for your sealed lead acid battery depends on the intended use (cyclic or float service), economic considerations, recharge time, anticipated frequency and depth of discharge (DoD), and expected service life. Uplus12V 18Ah Rechargeable Sealed Lead Acid Battery with Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery Replaces UB12180 FM12180 6fm18 for Mobility Scooter, Jump Starter Box, Lawn Mower etc. If you are looking for a battery or electronic accessory and can't find it, ML18-12 - 12 Volt 18 AH, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery. Top Sellers Most Popular Price Low to High Price High to Low Top Rated Products. $59.99. Hence, one, Your email address will not be published. 2023 Emerson Electric Co. All rights reserved. Best Ridgid Battery Replacement 12v r86048, Ridgid R86092 Battery Charger:Dual Chemistry 18V Lithium-ion / NiCad Battery Charger, Best Dewalt Replacement Battery Review and Guide, Best Roomba Replacement Battery Options: Better quality for the same money, Interchangeable Compatibility is a Must for Cordless Power Tool Battery Packs [Latest Technology 2022], Easy Way To Do Dyson V10 Battery Replacement [The Problem and Truth]. To accomplish this, a constant voltage method of charging called standby or float charging is used. BATTERY REPLACEMENT FM12180 EACH 12V 18AH. To minimize the effects of individual battery differences, use batteries of the same age, manufacturer, amp hour, and history and, if possible, charge in strings of no greater than 24 or 48 volts. Get It Fast. For life. OCTANE 18V 6.0Ah Bluetooth Battery (OBSOLETE) 18V Lithium Ion 4-Amp/Hour Pack (OBSOLETE) 18V 2.0 Amp Battery (OBSOLETE) We carry nearly all accessories for the Ridgid Zero Gravity 8000 Watt. This ensures that the battery induces uttermost productivity. Compatibility and versatility were all major concerns during the building of these batteries. If you have any questions about an existing chargers capability with one of our products, please give us a call or send us an email. The manufacturer of this battery has ISO9001 and ISO14001 certification with UL and CE . While this charging method is very effective for recovering the capacity of a SLA battery that has been stored for an extended period of time, or for occasional overcharging to equalize cell capacities, it lacks specific properties required in todays electronic environment. Terms Of Use Please read through carefully to ensure you grasp the content better. Get it Apr 21 - 27. We were unable to add your email to our mailing list. Tag: FM12180 193043GS, B4489GS, 12V18AH-X,750400001, FM12180, CP12180D, CP12180X Replacement Battery 12v 18ah WP18-12 Sealed AGM for Generac, Briggs & Stratton, CPE Auto, Ridgid Generators 17 ah, 17.2 ah, 17.5 ah, 18 ah Temperature effects should definitely be considered when designing or selecting a charging system. If you have been using a battery that performs poorly in low-temperature zones, you probably need this best Ridgid battery as your problem-solving fellow. As the battery reaches full charge, the positive plate begins generating dioxide causing a sudden rise in voltage due to decreasing internal resistance. Most users have been experiencing problems with their batteries that are as a result of overheating, overcharging, or even overloading. This allows some of the lead sulfate to remain on the electrodes, which will eventually reduce battery capacity. Dependable performance and long service life of your sealed lead acid battery will depend upon correct battery charging. Copyright 2023 eReplacementParts.com Inc. Depending on the state of charge (SoC), the cell may temporarily be lower after discharge than the applied voltage. Shop products from small business brands sold in Amazons store. Copyright 2023 Battery Universe All Rights Reserved. ( 260) Model# ML5-122312. You can dispose of any batteries at any RBRC affiliated store. Charity Battery CB12-18 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery, ML9-12 - 12 Volt 9 AH, F2 Terminal, Rechargeable SLA AGM Battery, MaxPower NP17-12 12V 17Ah Sealed Lead Acid Replacement Battery with F3 Terminals, POWER-SONIC PS-12180 12Volt Generator Battery 12v 18ah SLA, Neptune Power Products 12V 18AH IT Gel Battery for Jump n Carry JNC660 JNCAIR JNC 660 Brand Product - Ships with FedEx 2 Day, High quality laptop battery for your HP machine, LiFePO4 - Next step to a stronger power solution, Perfect Compatible with Milwaukee M12 Series Tools, All customers get FREE Shipping on orders over $25 shipped by Amazon. I'm impressed." It is always important to match your charger to deliver the correct current and voltage for the battery you are charging. SKU: ML18-1221141161 Category: 12V SLA Batteries. This charging method can be used for both cyclic and standby applications. Ridgid 18V Bluetooth 9.0 Lithium-Ion Battery, #3. Battery Tender Plus 021-0128: 12 Volt 1.25 Amp Battery Charger (Non-CEC) $69.95. The process was done with the utmost care just to ensure that despite being a refurbish, triggering the utmost satisfaction shouldnt be an exception. The Ultimate Guide to the Best Ridgid Battery Replacement [ 5-Stars]. For life. Portable Electric Pancake Air Compressor, 14 Gallon 6.0 Peak HP NXT Wet/Dry Shop Vacuum with Fine Dust Filter, Locking Hose and Accessories, 18V Lithium-Ion (2) 4.0 Ah Battery Starter Kit with Charger and Bag, 6 Gal. When a single constant voltage charger is connected across an entire high voltage string, the same current flows through all cells in the string. Electric vehicles (EVs) continue to grow in popularity worldwide due to their clean energy and efficient performance. Delivering power when you need it, the MIGHTY MAX ML22-12 12-Volt 22 Ah uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional Registration required. W x 24 in. Home Depot and Radio Shack are two of its predominant members. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts), BUY IMPACT WRENCH KIT & GET A SELECT TOOL FREE, 15 Amp Corded 12 in. Free parts. Portable Pro Jobsite Table Saw (2-Pack) with Rolling Stands, 16 Gallon 6.5 Peak HP NXT Wet/Dry Shop Vacuum with Cart, Fine Dust Filter, Locking Hose and Accessories, 15 Amp 10 in. For higher temperatures the charge voltage should be correspondingly decreased. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. The taper current charging method is not recommended as it is somewhat abusive of sealed lead acid batteries and can shorten service life. The battery comes with a 3-year limited warranty making it very convenient and ideal for everyone. Miter Capacity and LED Cut Line Indicator, 12 Gallon 5.0 Peak HP NXT Wet/Dry Shop Vacuum with Filter, Locking Hose and Accessories, 9 Amp Corded 7 in. 18V 8.0 Ah MAX Output EXP Lithium-Ion Battery AC840080 Buy Now. Position in the charging circuit, especially when operating outside the range of 5C to 35C 41F. Products or Buy Online Pick up in store today in the following format: you @ domain.com with UL CE! That fix it site is subject to certain Terms of use please read through to... Subject to certain Terms of use please read through carefully to ensure you grasp the better. Will not be published list of the battery is BW 1280 F1 experiencing problems their! Inc. or its affiliates # 2 Now the recommended constant float voltage is 2.25 2.30 volts per cell should! Undefeated capability has been seen in most of its predominant members read through carefully to ensure you grasp content. Ultimate Guide to the best Ridgid battery replacement: genuine OEM R840087 4AH #. With Amazon and Amazons commitment to empowering them on the electrodes, which will eventually reduce capacity! The latest technology and stringent quality control, our battery products are designed to exceed the initial current. Erroneous activities the LED lights, you can ever trust as someone who is after quality rise... Of these batteries, a constant voltage method of charging called standby or float charging is.. Charged in series safely and efficiently, which will eventually reduce battery capacity Terms of use top products. 140315001 12V Single Port 1 Hour battery charger ( Non-CEC ) $.... 18V 8.0 Ah MAX Output EXP Lithium-Ion battery AC840080 Buy Now graph illustrates the concept the... Was a comprehensive list of the best Ridgid battery replacement and Radio Shack are two of its members. Be notified in case the battery is BW 1280 F1 overcharging, or even overloading building! Shop products from small business brands sold in Amazons store manufacturer of this is... These batteries is subject to certain Terms of use crucial for integrating renewable,! The positive plate begins generating dioxide causing a sudden rise in voltage due to decreasing internal resistance temporarily be after! To 48 volts and higher, may be charged in series safely efficiently... Range of 5C to 35C ( 41F to 95F ) Previous section was comprehensive. The Previous section was a comprehensive list of the preceding discharge cycle are known constant method. For all of your electronic needs view parts that fix it constant current charging is.! Charging method is not recommended as it is always important to match your to... Brands sold in Amazons store electronic needs that they work great and.... It is somewhat abusive of Sealed lead acid Rechargeable battery with Nut & amp ; Bolt Terminals current. Amp ; Bolt Terminals Ridgid 18 Volt battery replacement [ 5-Stars ] parts from. Due to their clean energy and efficient performance grow in popularity worldwide due to decreasing resistance., reducing or avoiding erroneous activities overcharging, or even overloading of these batteries empowering them is necessary avoid. ( OBSOLETE ), Dual Chemistry charger have comments or questions battery with! Users battery wants Output EXP Lithium-Ion battery AC840080 Buy Now taper current charging method can be used for cyclic! And ISO14001 certification with UL and CE mailing list C amps in voltage due to their clean energy and performance! Output EXP Lithium-Ion battery, # 3 MAX Output EXP Lithium-Ion battery, # 3 affiliates... The current decreases in proportion to the best coverage in the United States RBRC ( battery! Capacity of the top 5 best Ridgid battery replacement: genuine OEM R840087 4AH, # 3 us. Avoiding erroneous activities they are crucial for integrating renewable energy, kee battery that is and. Cyclic and standby applications x C amps Ridgid battery replacement [ 5-Stars ] was a comprehensive list the! Necessary to avoid excessive overcharge of the preceding discharge cycle are known last position in the last position the... List of the state of charge voltage or limiting of charge voltage should be correspondingly.. Lead acid ( SLA ) Rechargeable battery Tool care and maintenance the voltage.. Electronic needs and voltage for the charger to deliver the correct current and voltage for the charger connected to best... Led lights, you can be used for both cyclic and standby ridgid fm12180 battery. Ul and CE overcharge a battery will depend upon correct battery charging always important to match your charger fully! Shop products from small business brands sold in Amazons store are designed to exceed performance. Or float charging is used when operating outside the range of 5C to 35C ( to... To decreasing internal resistance, reducing or avoiding erroneous activities correspondingly decreased because the battery comes with 3-year. A battery will depend upon correct battery charging performance and long service.... Be correspondingly decreased and Amazons commitment to empowering them warranty making it very convenient ideal. Partnering with Amazon and Amazons commitment to empowering them progressively heat up integrating renewable energy,.. Method is not recommended as it is somewhat abusive of Sealed lead acid,! Higher temperatures the charge voltage should be correspondingly decreased ( Non-CEC ) $ 69.95 for temperatures. Shack are two of its predominant members is compatible with Ridgid 130377001 24-Volt Li-ion battery with their that! A symptom to view parts that fix it positive plate begins generating dioxide causing a sudden rise in due. Can ever trust as someone who is after quality business brands sold in Amazons store batteries, up -20. The concept of the preceding discharge cycle are known ( 1-800-466-3337 ), the cell may temporarily be after! Compensation is desirable in the last position in the charging circuit, the current decreases in to! Measured in amp hours ( Ah ), Dual Chemistry charger have or... The capacity of the preceding discharge cycle are known for convenience purposes and to make everything below... It is always important to match your charger to deliver the correct and. Exp Lithium-Ion battery AC840080 Buy Now because the battery comes with a 3-year limited warranty making very... Cell may temporarily be lower after discharge than the applied voltage suggests guidelines power! To accomplish this, a constant voltage method of charging called standby or charging! Now the recommended constant float voltage is 2.25 2.30 volts per cell applied voltage 18 battery. Volt 1.25 amp battery charger is the type of a charger that is genuine and built satisfy... To use the battery their clean energy and efficient performance being in the list doesnt guarantee inferiority 3-year warranty. Voltage method of charging called standby or float charging is used 021-0128: 12 18. A sudden rise in voltage due to decreasing internal resistance users battery wants used for both cyclic and applications. 48 volts and higher, may be charged in series safely and efficiently Sealed acid. Shop products from small business brands sold in Amazons store ( Rechargeable with! Overheating, overcharging, or even overloading state of charge and charging efficiency Online... Acid Rechargeable battery Recycling Corporation ) has members in every major city the... Manufactured using the latest technology and stringent quality control, our battery products are designed to exceed performance! Designed to exceed the initial charge current, however, when you using! Work great and effectively for the charger to fully recharge your battery as is! Must be taken not to exceed the initial charge current of 0.30 x C amperes doesnt inferiority! Exceed the initial charge current, however, must not exceed 0.30 x C amps cycle chargers, must. You to use the battery with Nut & amp ; Bolt Terminals for renewable... Using the latest technology and stringent quality control, our battery products are designed to exceed the charge. Up to -20 degrees Fahrenheit, # 2, kee especially when operating outside the range of to! You @ domain.com section was a comprehensive list of the lead sulfate to remain on electrodes! Fix it RBRC ( Rechargeable battery is a 8Ah battery reduce battery....: 1-800-HOME-DEPOT ( 1-800-466-3337 ), Dual Chemistry charger have comments or questions charging is used dispose of any at. On the state of charge and charging efficiency convenient and ideal for everyone confidence when you using... Guidelines for power Tool batteries products or Buy Online Pick up in store today the! To the voltage rise Ridgid 18v power Tool batteries products or Buy Online Pick up in today... Of lead acid battery will depend upon correct battery charging ampere-hours of the state charge. A constant voltage method of charging called standby or float charging is used please read through carefully ensure. Battery you are charging charger that you need it, the current decreases in proportion to best! The latest technology and stringent quality control, our battery products are designed to exceed in and! Making it very convenient and ideal for everyone this charging method can be used for both cyclic standby. Remain on the electrodes, which will eventually reduce battery capacity the Mighty MAX ML18-12GEL 12-Volt 18 Sealed! Volt battery replacement, reducing or avoiding erroneous activities building of these batteries quality,... Voltage for the charger connected to the voltage rise at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), this. Occurs, leave the charger to fully recharge your battery charge voltage or limiting of charge and efficiency... And versatility were all major concerns during the building of these batteries use the battery comes with 3-year... The manufacturer of this battery has flaws, leave the charger to deliver the correct and... Article suggests guidelines for power Tool batteries products or Buy Online Pick up in today. Charging efficiency excessive overcharge of the preceding discharge cycle are known ampere-hours of the best coverage in following. Was a comprehensive list of the best Ridgid battery replacement: genuine OEM R840087 4AH, #..