100a 12v Battery Chargers of 2025
Best Choice1
Schumacher Electric19% OffSchumacher Electric DSR ProSeries INC100 Fully Automatic Battery Charger and Flash Reprogramming Power Supply with Service Mode, 100 Amps, 12 Volts, Black, 1 Unit
Main highlights- Temperature Controlled: Built-in fans cool the DSR ProSeries INC100 100A 12V Battery Charger, Flash Reprogrammer, and Power Supply, contributing to long-lasting power
- Shop Friendly: Heavy-duty, 4-guage output cables with more than 18 feet of reach are well suited for automotive shop/dealer use, providing superior power transfer and convenience
- Powerful Performance: This professional-grade power supply provides up to 100A of power and the voltage is selectable between 13.0 volts and 14.8 volts
- Multiple Features: The Schumacher DSR ProSeries INC100 features non-sparking clamps, reverse hook-up protection, multi-stage charging, and a built-in battery tester
- Maximum Compatibility: The INC100 works with regular automotive, lead-acid, calcium, AGM, start-stop, and gel cell batteries, ensuring it is a versatile tool for any garage
- Maintains Stability: The INC100 is designed to provide a stable voltage under varying loads during major vehicle ECU reprogramming and diagnostic work
- In the Box: Schumacher DSR ProSeries INC100 100A 12V Battery Charger and Flash Reprogramming Power Supply, quick-connect battery clamps, (4) mounting brackets, and user manual
- Easy Permanent Installation: The INC100’s adjustable mounting brackets simplify the installation process, making it easy to attach the INC100 to most shop vehicle lifts
9.7Exceptional
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Value for Money2
PowerMaxPowerMax PMBC 100 Amp 12V Battery Charger/Maintainer, Flash Reprogrammer & Adjustable Power Supply w/ 15ft Cables, Voltage Display & Mounting Brackets for RV, 12V Car Audio, Boat Motors & LED + House
Main highlights- The Power You Need – PowerMax can give some power to your RV, 12V Car Audio/ Stereo/ CV Radio, Boat trolling motors, and LED, and can provide some power to your house, lighting off-grid & solar backup. 12V Battery Charger has a power supply that you could connect to your car, then plug it in and play your car stereo without running the engine. It is rated for 100 amps.
- SAFE TO USE: Powermax converter/charger will not boil the battery. It has an Intelligent way to charge & maintain your RV battery and is very easy to install so it’s a free hassle to use. 3-stage charging system built-in dramatically increases battery life for long last usage. Reliable, safe, & clean AC/DC power. It has reverse polarity, Overload & Thermal protection. 55Apm DC Power Output w/ built-in 3 stages smart charger.
- NO NEED TO REWIRE: With no need to re-wire, installation is only 10 minutes! It has an automatic three-stage converter that handles every charging need for the RV, Boat motor and LED, house lighting, and off-grid & solar backup while extending the battery’s life. Well-maintained batteries should never need more than two-stage (normal and trickle) charging. No more flickering lights in our camper.
- How to charge a 12-Volt Battery? Connect your 12-volt battery to the battery charger by attaching the BLACK negative cable from your charger to the negative terminal of the 12-volt battery. Make sure to use the clips or clamps to connect to the terminal securely. Generally, the negative terminal is labeled “–“. You also need to connect the positive cable from your charger to the RED positive cable of the battery. You’ll find the “+” mark on the positive terminal.
- AUTOMATIC THERMAL PROTECTION: PowerMax Battery Charger has automatic thermal protection. It can reduce output to safe levels if the unit temperature exceeds safe levels pre-set limits and protects against charger damage due to excessive heat. It automatically reduces the output voltage to prevent overheating and possible damage. Even though there is no risk of overcharging with the use of a high-quality charger, the battery should not remain connected to the charger for more than 24 hours.
9.6Exceptional
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3
PowerMaxPowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems
Why we love it
Wide range of amperage sizes available.
Safe, intelligent charging system.
Easy 10-minute installation.
9.4Excellent
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4
BESTRENOGYrv Converter 100 amp for Camper,RV. Lithium Battery Charger 110v ac to 12v dc 100 amp Converter Charger for Lithium/LiFePO4/Leadacid(100AMP)
Main highlights- {Suitable for multiple batteries}: For lead-acid batteries, please use the three-stage charging mode on the side of the power converter. For lithium-ion LiFePO4 batteries, Switch to a fixed output mode at the required voltage, the battery charger will automatically stop when fully charged.
- {Smart charging mode}:Our RV converter's intelligent charging mode protects and extends your battery life. The 3-level charging mode allows the voltage to cycle from 13V to 16.5V according to your power needs. You can also use the fixed output mode to adjust the output voltage according to your specific battery requirements. Use it as a RV battery charger or safely power all 12V electronic devices!
- {Quiet cooling fan}: The cooling fan of the converter does not run at the beginning of use, but runs when the load reaches the required level. It is equipped with standard safety features, including overcurrent protection, overtemperature protection, overvoltage protection, and reverse polarity protection. Do not block the air vent or install it in a zero gap compartment, otherwise it may cause overheating and provide overall overload protection.
- {100A rv power converter charger}： PM3 100A rv power converter can convert 110V-120V AC power to 13V-16.5V DC power, with three built-in intelligent battery chargers that can maintain three charging modes. This RV converter provides a 100 ampere clean and reliable DC power supply, making it ideal for powering electronic devices and appliances. We can provide power for your RV, 12V car stereo/stereo/string lights/marine lighting/solar equipment.
- NO NEED TO REWIRE: With no need to re-wire, installation is only 10 minutes! It has an automatic three-stage converter that handles every charging need for the RV, Boat motor and LED, house lighting, off-grid & solar backup while extending the battery’s life. Well-maintained batteries should never need more than two-stage (normal and trickle) charging. No more flickering lights in our camper.
9.3Excellent
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5
sdanbomPM4 100 Amp RV Power Converter - Power Converter with Built-in 4 Stage Smart Battery Charger - Multiple Capacities 100A 110V AC to 12V DC 100 Amp Battery Charger RV Power Converter Replacement
Main highlights- Your RV or Boat Needs this Converter Replacement: Virtually all electronic devices require converters. The high standard of technical requirements means that the converter will not interfere with TV, radio or other signals. The converter basically prevents your RV's battery or other electronic devices at home from draining when you're plugged in.
- Super Easy to Install & After- Sale Service: Camper Inverter approved UL,Ensure that the power supply is disconnected before installation, make sure all wires are secure and tight, give them a little snug. Please feel free to contact us if there is any problem, damage or unsuitability of the product. We will provide full after-sales service and try our best to solve the problem. Saving you time, money and energy!
- Quiet Cooling Fan Working & Safe Design:The converter's cooling fan will not run at the start of use, but rather when the load reaches the point where it is needed. It is equipped with standard safety features including over current protection, over temperature protection, over voltage protection, and reverse polarity protection. Do not obstruct ventilation openings or mount in zero clearance compartment, overheating may result, provided with integral protection against overloads.
- High Performance 100 Amp Power Converter: The PM4 100a rv power converter can convert 110V-120V ac to 12V-16.5v dc, built-in 4 smart batteries charger maintains three charging modes. Our converter chargers are versatile, advanced power solutions. This RV converter provides 100 amps of clean, reliable DC power, perfect for powering electronic devices and appliances. Can power your RV, 12V car audio/stereo/string lights/offshore lighting/solar equipment.
- Automatic Three-Stage Battery Charging: Electronic current limiting automatically shuts down the power during overload or short-circuit conditions. Versatile upgrade option for a variety of RV trailer camper power systems.three stages of charging mode: ① Fast charging（Boost）, which can quickly restore depleted batteries to full voltage mode; ② Standard charging system（Norma），enables the battery to operate at full load at a safe speed to extend battery life; ③ Trickle charging(Storage), Keep the battery fresh when the load is not active (storage function).
9.2Excellent
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6
KEPWORTH10% OffKEPWORTH 12.8V 100Ah LiFePO4 Battery Group 31, Rechargeable Lithium Batteries with 100A BMS, up to 4000+ Deep Cycles, Grade A Lithium Iron Phosphate Cells, for Trolling Motor, Boat, Rv, Solar, Backups
Main highlights- Warm note: recommend to use a group 31 waterproof battery compartment if the lifepo4 battery is used on wet enviroment or on marine
- Capacity Expansion & Widely Use: 12V 100Ah Lifepo4 Batteries support parallel and series connecting. Powerful energy expansion system could be widely used for home storage system, off-grid system, RV, Trolling Motor, Boat, Marine, lead Acid / AGM battey replacement, 12V trailer, Solar System, Camping, fishfinder, Alarm System, and many others activities. Much more flexible to DIY your own battery system. Please note whether battery power matches your load wattage before use.
- Automotive Grade A LiFePO4 Battery Cells:KEPWORTH adopt Automotive Grade A Lithium iron phosphate battery Cells with higher energy density, more stable performance & greater power, and insist on providing customer with environmentally friendly green power solution. Highest grade of battery cell and authoritative accreditation enable our battery growing as LiFePO4 battery leader.
- 12.8V 100Ah Lithium iron phosphate battery features: the dimension of 12.8V 100Ah battery is: L13.07*W6.93*H8.66 inch, the max continuous discharging current is 100A. the inrush current is 200A within 3-5 seconds. charging voltage we recommend for 12.8V LiFePO4 Battery is 14.6V, recommended charging Current is less than 50A. an aviation head 7A charger comes with the battery in free, users can charge the battery from side ports and top terminal at the same time
- 100A BMS Protection: 12.8V 100Ah LiFePO4 battery built-in upgarded 100A BMS (Battery Management System) to protectbatetry from overcharge, over-discharge, over-current, and short circuit with excellent self-discharge rate. Built-in high-temp/ low-tem cut off prevents charging/ discharging When the temperature reaches a certain threshold value. Low discharing rate, providing the ultimate user experience
- 10-year lifetime, KEPWORTH is aming to offer consumers with satisfactory service. 5-Year-after-service solution for this 12.8V 100Ah Lithium battery with responsive and satisfying customer-service. please find the amazon on "Your Order" options click the "contact seller" or find us in the storefront page and click the "Ask a question". A proper solution will be provided to any problem within 24hrs for delivery, battery and any problem.
9.1Excellent
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7
GenericRV Converter | Multiple Capacities | Power Converter with Built-in 4 Stage Smart Battery Charger RV Battery Charger 100 Amp Power Supply
9.9 Easy installation9.9 worth the money9.3 Light weight8.9Very Good
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8
LitimeLiTime 12V 100Ah Group 24 Bluetooth LiFePO4 Battery and 14.6V 20A Lithium Battery Charger with Anderson Connector, 100A BMS with Low-Temp Protection, Max. 15000 Cycle, Perfect for RV, Trolling Motor
Main highlights- Smart Bluetooth BMS & Low-Temp Protection: LiTime 12V 100Ah Group 24 All-around LiFePO4 Lithium Battery is built-in upgraded smart BMS, accessed Bluetooth 5.0 module, Bluetooth function allows you to monitor the battery information in real time through LiTime APP, and easily cope with all kinds of environments and situations at anytime, anywhere. Moreover, the smart BMS can prevent the battery from over-charging, over-discharging, over-current and short-circuit, and upgraded low-temperature cut-off function ensures safe use in low temperature and any environment.
- Professionalism Achieves Quality: LiTime has been deeply ingrained in the lithium battery industry for 15 years, which is a collection of R & D, production, sales, after-sales integration, focusing on providing customers with one-stop solutions. We are dedicated to providing exceptional customer service and expert support for our products. Our online service team is readily available to assist you and ensure that you have the best possible experience with our products.
- Perfect Replacement for Lead-acid Batteries: LiTime 12V 100Ah Group 24 All-around Lithium Iron Phosphate Battery is the perfect choice for lead-acid battery conversion and upgrading, the weight of our battery is only 21.9lbs, they are 35% smaller and 63% lighter than ordinary lead-acid batteries, and the energy density has been increased by 3-5 times, and our lithium batteries do not contain mercury, lead, and other harmful chemicals, environmental protection and completely maintenance-free. It is more valuable for long-term use!
- Note: The LiTime LiFePO4 battery is intended for use as an energy storage purpose, Please do not use this battery as starting batteries, golf cart batteries, or jacks. Because the battery is overweight, so the battery and charger and other accessories will be divided into 2 packages for shipping, when you only receive a package please don't worry, just wait the second one patiently. After first receiving the battery or switching it off, you need to charge the battery using a lithium-activation charger or an MPPT charger to activate the Bluetooth function.
- LiFePO4 Battery + Dedicated Charger: LiTime 12V 100Ah Group 24 Bluetooth LiFePO4 battery can be efficiently charged by 14.6V 20A LiFePO4 battery charger in around 5 hours from 0 to 100% capacity, which takes only ½ the time of the traditional battery charger. High frequency chargers like this 14.6V 20A LiFePO4 battery charger offer very consistent and smooth output voltage extending the life of our battery.
- Easy and Practical Upgrade: New 14.6V 20A lithium battery charger upgraded the connection between the charger and the battery with an M8 terminal and added an 50A Anderson connector for customer using convenience. We have kept the cooling fan to enable the charger to charge more efficiently.
8.8Very Good
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9
RecProRecPro RV Converter 100 Amp | RV Power Converter & Battery Charger | 4 Stage Smart Charging | 120VAC to 12VDC | 13V to 16.5V Operating Range
9.7 Easy installation9.3 Charging power8.0 Noise levelWhy we love it
Effectively charges and powers RV batteries and appliances.
Quiet operation with minimal fan noise.
Compatible with both lead and lithium batteries.
8.7Very Good
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10
Femotic100 Amp 12V Battery Charger/Maintenance, Adjustable Voltage Stabilizer Power Supply for Flash Reprogrammer & Battery Maintainer with 15FT 6 AWG Cables, 3 Stage Charging for RV, Car Audio, LED Displays
Main highlights- 【Workshop-Ready Installation】No rewiring! Mount securely with included brackets and connect via corrosion-resistant terminals. Ideal for automotive shops, RVs, and marine use
- 【Built-in Safety & Durability】Thermal overload protection, reverse polarity safeguards, and 1” cooling space ensure reliability during extended ECU programming sessions or harsh environments.
- 【3-Stage Smart Charging + Battery Maintenance】 Automatically switches between Boost (14.6V), Normal (13.6V), and Storage (13.2V) modes to charge RV, marine, and AGM batteries efficiently while powering devices like car stereos or LED lights
- 【100A High-Current Output】 Heavy-duty 15ft 6 AWG cables minimize resistance, ensuring stable power delivery for trolling motors, amplifiers, or off-grid systems—even at maximum loadry
- 【 Flash Reprogramming & Stable Voltage】Deliver ultra-stable 12V DC power with adjustable voltage (13V-16.5V), perfect for error-free ECU flash reprogramming, vehicle diagnostics, and sensitive electronics. Avoid voltage drops during critical operations
8.6Very Good
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