10 Best Deep Cycle Battery Chargers 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 916 products, scanning 3455 reviews, spending more than 36 hours of research and speaking with our test users, we think the NOCO GENIUS10 is the one of the Best Deep Cycle Battery Charger on the market.

# Image Name Brand Price
1
⭐Best Choice
NOCO GENIUS10
NOCO GENIUS10, 10-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation Check price NOCO $$$$$ Check price
2 NOCO GENIUS5 NOCO GENIUS5, 5-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation Check price NOCO $$$$$ Check price
3 ADPOW 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages ADPOW 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages Trickle Charger for Deep Cycle Battery Car Marine Trolling Motor Boat Truck Lawn Mower RV AGM with Terminal Cleaning Brush Check price ADPOW $$$$$ Check price
4
💲Best value for the money
NOCO GENIUS1
NOCO GENIUS1, 1-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation Check price NOCO $$$$$ Check price
5 NOCO GENIUS2 NOCO GENIUS2, 2-Amp Fully-Automatic Smart Charger, 6V And 12V Battery Charger, Battery Maintainer, And Battery Desulfator With Temperature Compensation Check price NOCO $$$$$ Check price
6 Schumacher SC1280 15 Amp 3 Amp 6V/12V Fully Automatic Smart Schumacher SC1280 15 Amp 3 Amp 6V/12V Fully Automatic Smart Battery Charger Maintainer for Marine and Automotive Batteries Check price Schumacher $$$$$ Check price
7 BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with Detachable Alligator Rings Clips Fast Charging Trickle Charger for Car Boat Lawn Mower Marine Sealed Lead Acid Battery Check price BMK BLUEMICKEY $$$$$ Check price
8
👑Premium Pick
Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart
Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart Battery Charger 100A Engine Starter and 30A Boost Maintainer and Auto Desulfator Advanced Diagnostic Testing Check price Schumacher $$$$$ Check price
9 ADPOW Automotive Smart Battery Charger 12V 24V 12A Automatic Car ADPOW Automotive Smart Battery Charger 12V 24V 12A Automatic Car Battery Maintainer Intelligent Pulse Repair for Boat Marine Truck Lawn Mower Deep Cycle Battery with Terminal Clean Brush Check price ADPOW $$$$$ Check price
10 Ampeak 2/10/25A Smart Battery Charger/Maintainer 12V Fully Automatic with Engine Ampeak 2/10/25A Smart Battery Charger/Maintainer 12V Fully Automatic with Engine Start Check price Ampeak $$$$$ Check price

NOCO GENIUS10 – Best Overall Deep Cycle Battery Charger

NOCO GENIUS10
  • Start Dead Batteries - Safely jump start a dead battery in seconds with this compact, yet powerful, 1000-amp portable lithium car battery jump starter pack - Up to 20 jump starts on a single charge - and rated for gasoline engines up to 6 liters and diesel engines up to 3 liters.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus 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.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawnmowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

NOCO GENIUS5

NOCO GENIUS5
  • Meet the GENIUS5 - Similar to our G3500, just better. It's 34% smaller and delivers 65% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus 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.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawnmowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

ADPOW 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages

ADPOW 5A 12V Automatic Smart Battery Charger Automotive Maintainer 7-Stages
  • Intelligent Charging Mode: 7-stages automatic charging process [ Desulfation - SoftStart - BulkCharge - Absorbtion - TestMode - Recondition - Float] by MCU controller, the LED indicator provide visual feedback of battery capacity and diagnostic information accordingly, efficiently prolong the lifetime of the battery.
  • Wide Application: Charge fully drained 12V Pb/SLA/GEL/AGM/VRLA/sealed lead-acid batteries and WET/FLOODED for maintenance, including lawn mower, boat, car, electric vehicle, electric tools, ride-on toys.
  • Multi-Protection: Ensure ultimate safety protect against Short circuit/OVP/OCP/Overload/Polarity reversed,etc, full-loaded & burn-in test proved to be high efficiency and longevity.
  • Customized Design: Ultra-compact, portable and lightweight with the mounting holes, non-slipping and easy to carry; Water and dust resistant make it more safe to use in any situations.
  • What you Get: Come with smart battery charger with DC Adapters, with lifetime quality warranty & 30 days refund & timely after-sale service solve all your problems.

NOCO GENIUS1 – Best Budget Deep Cycle Battery Charger

NOCO GENIUS1
  • Meet the GENIUS1 - Similar to our G750, just better. It's 35% smaller and delivers 35% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus 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.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawnmowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

NOCO GENIUS2

NOCO GENIUS2
  • Meet the GENIUS2 - Similar to our G1100, just better. It's 34% smaller and delivers 65% more power. It's the all-in-one solution - battery charger, battery maintainer, trickle charger, plus battery desulfator.
  • Do more with Genius - Designed for 6-volt and 12-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus 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.
  • Restore your battery - Automatically detects battery sulfation and acid stratification to restore lost battery performance for stronger engine starts and extended battery life.
  • Beyond maintenance - It's not just a trickle charger, it's an advanced battery maintainer. A fully-automatic, worry-free battery charger for everyday use - 24/7 - with zero overcharge.
  • Compatible with all types of vehicles - charge and maintain cars, motorcycles, lawnmowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

Schumacher SC1280 15 Amp 3 Amp 6V/12V Fully Automatic Smart

Schumacher SC1280 15 Amp 3 Amp 6V/12V Fully Automatic Smart
  • Features 15A to charge and 3A to maintain your battery
  • Auto voltage detection automatically detects 6 or 12V batteries
  • Automatically selects charge rate for charging and maintaining
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries

BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with

BMK 12V 5A Smart Battery Charger Portable Battery Maintainer with
  • 【UPGRADED DEFECTIVE BATTERY DETECT/FAST CHARGING CAR BATTERY BOOSTER】Updated with battery condition diagnose to detect the defective battery before charge. Input 100-240V AC, With 5A DC output current, BMK 12V 5A car battery charger is suitable for charging batteries with 15-100Ah. NOTE: To better tender the battery, please make sure the battery capacity is higher than 15Ah, it can also charge over 100Ah batteries, just more charging time. ETL Certified for performance and safety
  • 【UPGRADED 72-HOUR SAFETY FEATURES/MULTI SAFETY PROTECTIONS - BATTERY RESCUE & RECOVER】Updated with 72 hours safety feature to commence anytime the charger is onto protect marginal batteries from over charging. Made of high quality ABS, multi-protects of Short Circuit/ OV/ OC/ Overload/ Polarity Reverse, featured with Constant Pulse Current Maintenance function to avoid overcharge and discharge; Full-loaded and burn-in test prove its high reliable efficiency, stable performance
  • 【4-STAGE SMART CHARGING - FULLY AUTOMATIC BOAT BATTERY CHARGER】 12V battery charger operated with 4 stages automatic charging process by MCU controller, 25%/50%/75%/100% to indicate quantity of electricity and monitor the whole charging progress. Stop automatically when the battery is fully charged. LED indicator designed to display different charging status of the 12v smart charger
  • 【UPGRADED WITH 10A FUSE ONTO RING CONNECTORS & MULTI-PURPOSES DEEP CYCLE BATTERY CHARGER】Pb/SLA/VRLA/GEL/AGM lead acid battery charger tender, operated with vulcanization function, BMK battery maintainer charger is a great choice for lawn mower, boat, car, motorcycle, electric vehicle, electric tools and emergency battery charging, lightweight(15.87oz) allows you take it to anywhere, used as Trickle Battery Charger as well
  • 【QUALIRY ENSURANCE & IN TIME SERVICE】BMK is devoted to provide boat battery trickle charger with higher qulality to meet buyers' needs better and timely after-sale services, eliminate all your worries about getting this trolling motor battery charger. Just get your Automotive Car Battery Charger Maintainer with confidence, and contact us if you have any problems about the item when using

Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart – Premium Pick

Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart
  • Features 30A quick boost and 1H2:L1600A jump start, powerful enough to start SUVs, trucks and large batteries
  • Battery and alternator tester provides charge level and helps diagnose electrical problems
  • Features multi-stage charging and auto-voltage detection for added precision, safety and battery life
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries

ADPOW Automotive Smart Battery Charger 12V 24V 12A Automatic Car

ADPOW Automotive Smart Battery Charger 12V 24V 12A Automatic Car
  • Multiple protections: Reverse, Overheating,Low voltage,Short circuit,Over current protection.
  • Intelligent:Shorter charging time due to optimized charging process.
  • Optimization:Stabilizes internal battery chemistry for increased performance and longevity.
  • Energy-saving:When the battery is fully charged,it will automatic stop.
  • Differnt Voltage Standard:The voltage standard is different when on automatic and manual charge. The automatic charge is about 14.3v,manual charge is about 14.8v. So there will show two different readings when you change the charging ways. Please notice DO NOT charge the battery for long time

Ampeak 2/10/25A Smart Battery Charger/Maintainer 12V Fully Automatic with Engine

Ampeak 2/10/25A Smart Battery Charger/Maintainer 12V Fully Automatic with Engine
  • 🚗▶Fast Smart Battery Charger◀: Quickly charging all types of 12V lead acid batteries, including GEL, AGM and STD. It's the best smart charger for christmas gifts, automotive, motorcycle, marine, RV, Powersport, lawn&garden, children toys, etc.
  • 🚗▶Start Aid Button◀: Energy saving design for activating battery whose capacity is not enough to start engine within one 120 second cycle
  • 🚗▶Advanced Reconditioning Mode◀: Use our advanced Reconditioning Mode to reverse the damaging effects when batteries are left uncharged for extended periods to improve battery performance and longevity. (Do not charge a frozen or dead battery!)
  • 🚗▶Smart Detect System◀: Automatically detect the battery voltage and capacity, and select the charge rate best fit for your type of battery. Automatic charge cycle functionality switches to float mode after fully charging the battery
  • 🚗▶Advanced & Safety Protection◀: LCD helps keep driver informed of chargers operation. Certified by UL. No worry about battery over voltage, over heat, overtime charging and reverse polarity. 18-Month Hassle-Free Warranty, 24-hour friendly customer service and 100% customer satisfaction will be provided by contacting our professional customer service team: 🚗 [email protected]🚗

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