Battery maintainer is an essential tool for anyone looking to prolong the life of their vehicle's battery, especially in 2025 when advanced technology and efficiency are paramount. The best battery maintainers on the market offer features such as smart charging, compatibility with various battery types, and compact designs for easy storage. These devices not only prevent battery drain but also ensure optimal performance, making them a must-have for car enthusiasts and everyday drivers alike. With options ranging from budget-friendly to high-end models, there's a perfect battery maintainer for every need.
SALE
−$20.00
NOCO GENIUS5, 5A Smart Car Battery Charger, 6V and 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV, Lithium and Deep Cycle Batteries
- Meet the GENIUS5 - Similar to our G3500, just better. It's 34% smaller and delivers over 65% more power. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
- Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
- Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
- Restore your battery - An advanced battery repair mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
$69.95
SALE
−$25.08
NOCO GENIUS10, 10A Smart Car Battery Charger, 6V and 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV, Lithium and Deep Cycle Batteries
- Meet the GENIUS10 - Similar to our G7200, just better. It's 17% smaller and delivers over 115% more power. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
- Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
- Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
- Restore your battery - An advanced battery repair mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
$99.87
SALE
−$15.00
NOCO GENIUS2, 2A Smart Car Battery Charger, 6V and 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV, Lithium and Deep Cycle Batteries
- Meet the GENIUS2 - Similar to our G1100, just better. It's 30% smaller and delivers over 140% more power. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
- Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
- Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
- Restore your battery - An advanced battery repair mode uses slow pulse reconditioner technology to detect battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
$49.95
SALE
−$2.00
NOCO GC009 X-Connect SAE Adapter Accessory Genius Smart Battery Chargers
- Converts X-Connect to an SAE connector commonly found on traditional chargers.
- Conveniently allows the use of existing SAE power adapters and accessories.
- Built-in 20A micro-blade fuse for increased safety and protection.
- Rugged, watertight connector for maximum performance.
- Compatible with G750, G1100, G3500, G7200, and G4 models, as well as GENIUS1, GENIUS2, GENIUS2X2 GENIUS2X4, GENIUS5, and GENIUS10. Not compatible with NOCO Boost or Boost X UltraSafe Lithium Jump Starters.
$15.95
SALE
−$10.00
NOCO GENIUS2D, 2A Direct-Mount Onboard Car Battery Charger, 12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Marine, ATV, Truck and Deep Cycle Batteries
- Meet the GENIUS2D - A direct-mount onboard battery charger for an under-the-hood battery charging. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
- Do more with Genius - Designed for 12-volt sealed lead-acid automotive, marine, RV, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free batteries.
- Direct Mount - Securely mounts nearby the battery with its rugged snap-fit mounting bracket and effortlessly installs into most materials with truss-head self-tapping screws.
- Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Charge dead batteries - Charge batteries as low as 1-volt, including flooded, gel, and AGM, as well as automotive, marine, and deep-cycle batteries.
$39.95
NDDI Car Battery Charger, 6V-12V 5A Smart Battery Trickle Charger Automotive Battery Charger Maintainer for Car Truck Motorcycle Lawn Mower Marine Lead Acid Batteries
- 【Widely Compatible】Battery charger suitable for both 6V and 12V batteries, It works with AGM, EFB, MF, FLOODED, VRLA, SLA and Wet batteries, meaning that it can be used for the batteries in Car, Truck, Motorcycle, RV, SUV, ATV, golf cart, tricycles, agricultural vehicles, bus, etc.
- 【Plug and Play】No complicated steps, just plug and charge, stay at home and charge your batteries on your own. All-in-one battery solution as car battery charger, battery maintainer, trickle charger, plus battery desulfator. The must-have tool for your garage.
- 【Enjoy Precision Charging】Portable battery charger/maintainer automatically adjusts the charge current and maintainability according to the temperature. An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- 【Automatic Battery Charger】Featured detachable ring or alligator connectors, charge and maintain your battery wherever you go.Monitor the whole charging process, automatically switches to float mode after fully charging the battery by MCU controlled.
- 【Multi Protection 】: Battery charger provide multi protection against reverse polarity protection, short circuit, over voltage/current, over charge/discharge, overload, overheat, spark proof during lead connection, dust resistant, float battery charger. Our full-loaded and burn-in test proves its stable performance and high reliability.
$27.99
NOCO Genius GEN5X2, 2-Bank, 10A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries
- Meet the GEN5X2 - Similar to our GENM2, only better. It's 37% smaller and delivers 43% more power. It's one of the best performing onboard marine battery chargers we have ever made.
- Multiple banks - A two-bank onboard battery charger rated a 10-amps - 5-amps per bank - for 12-volt batteries, including marine, boat, starter, and deep-cycle batteries.
- Charging modes - Independently charge and control each battery bank with selectable charging modes - including 12V, 12V AGM, 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries.
- Enjoy precision charging - An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
$139.95
NOCO GC014 X-Connect XL Battery Clamp Accessory with Integrated M10 Eyelets Genius Battery Chargers
- Dual purpose battery clamp accessory with integrated M10 eyelet terminal connectors.
- Needle-nose battery clamp to fit battery terminals of any shape or size.
- Built-in 20A micro-blade fuse for increased safety and protection.
- Rugged, watertight connector for maximum performance.
- Compatible with G750, G1100, G3500, G7200 and G4 models, as well as, GENIUS1, GENIUS2, GENIUS2X2, GENIUS2X4, GENIUS5, and GENIUS10. Not compatible with NOCO Boost or Boost X UltraSafe Lithium Jump Starters.
$22.95
SALE
−$40.00
NOCO Boost XL GB50 1500 Amp 12-Volt UltraSafe Lithium Jump Starter Box, Car Battery Booster Pack, Portable Power Bank Charger, and Jumper Cables for up to 7-Liter Gasoline and 4-Liter Diesel Engines
- Start Dead Batteries - Safely jump start a dead car battery in seconds with this compact, yet powerful, 1500-amp portable lithium car battery jump starter pack - up to 30 jump starts on a single charge - and rated for gasoline engines up to 7 liters and diesel engines up to 4.5 liters..USB Input : 5 Volts 2.1 Amps Max. USB Output : 5 Volts 2.1 Amps Max
- UltraSafe - Safe and easy to use car battery jump starter pack without the worry of incorrect connections or sparks. Safely connect to any 12-volt automotive car battery with our mistake-proof design featuring spark-proof technology and reverse polarity protection.
- Multi-Function - It's a car jump starter, portable power bank, and LED flashlight. Recharge smartphones, tablets, and other USB-C devices. It's easily rechargeable from any powered USB-C port in 5 hours at 2.1-amps. Plus, an integrated 200-lumen LED flashlight with seven light modes, including emergency strobe and SOS.
- Advanced Design - Our most advanced portable car battery jump starter ever. Featuring high-discharge lithium technology for safe operation in any climate. A rugged and water-resistant enclosure rated at IP65. A rubberized over-molded casing to prevent scratching or marring of surfaces. And an ultra-compact and lightweight design weighing just 2.7 pounds.
- In The Box - GB50 UltraSafe Portable Lithium Car Battery Jump Starter Pack, Needle-Nose Battery Clamps, USB-C Charging Cable, Microfiber Storage Bag, User Guide, 1-Year Warranty, and Designed in the USA.
$149.95
SALE
−$25.00
NOCO GENIUS2X2, 2-Bank, 4A (2A/Bank) Smart Car Battery Charger, 6V/12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV and Lithium Batteries
- Meet the GENIUS2X2 - A two-bank battery charger for charging multiple batteries. It's the all-in-one universal charging solution for 2 batteries - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator.
- Multiple banks - A two-bank battery charger maintainer rated a 4-amps - 2-amps per bank - designed to charge and maintain multiple vehicles like cars, motorcycles, ATVs, boats, RVs, trucks, lawn mowers, tractors and more.
- Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lithium-ion batteries (lifepo4).
- Enjoy precision charging - An integrated digital thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.
- Charge dead batteries - Charges batteries as low as 1-volt. Or use the all-new force mode that allows you to take control and manually begin charging dead batteries down to zero volts.
$99.95
Last update on 2025-05-02 / Affiliate links / Images from Amazon Product Advertising API