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Tested, Reviewed, and Approved by YouTubers
My latest 2025 Budget Battery Find!
These batteries keep getting cheaper and the quality has been going up. Recently I reviewed a wattcycle 12V battery and was blown away! This has the best build quality around, and it is cheaper than most of the budget batteries below. Pretty incredible!
★★★★★
@DIY Solar Power with Will Prowse
1M subscribers

WattCycle Deep Cycle Battery: Only Grade A+ Cells
Grade A+ cells typically refer to battery units that incorporate high-quality, high-performance cells. Specifically. These cells often exhibit the following characteristics and benefits:
1) High Energy Density
2) Long Cycle Life
3) High Safety Standards
4) Stable Performance

WattCycle Battery Safety: Intelligent BMS
Battery Management System: A crucial component in lithium-ion batteries and other rechargeable batteries, responsible for monitoring and managing the battery's performance.
8X Safety Protection: Over-current/Over-charge/Over-discharge/Over-load/High Temperature/Low Temperature/Short Circuit/Equalization Protection.
Working as Usual in Extreme Weathers
Charge Temperature: 0℃ to 50℃ / 32℉ to 122℉
Discharge Temperature: -20℃ to 70℃ / -4℉ to 158℉
Group 24 Size, Universal Fit
Typical dimensions for a Group 24 battery:
Length: 260 mm
Width: 173 mm
Height: 225 mm
Please double-check the specific dimensions provided by WattCycle to ensure a perfect fit, as slight variations can occur.
Lighter, Smaller & More Energy
62~69% Lighter | 27% Smaller | 178~247% Energy Increases
Versatile Compatibility for RVs with Different Configurations
-
2P Configuration
Voltage: 24.8V
Current: 100A
Energy Capacity: 2480Wh -
3P Configuration
Voltage: 38.4V
Current: 100A
Energy Capacity: 3840Wh -
4P Configuration
Voltage: 51.2V
Current: 100A
Energy Capacity: 5120Wh
Empower Your Adventures: Build the Ultimate RV Power System!
Stay Powered: Reliable Home Backup Solutions for Peace of Mind
Precautions before Connections
-
No charging for the lead-acid battery
For the sake of safety and battery life, It cannot be used to charger for the lead-acid battery.
-
No using as the starting battery
Lithium batteries are not intended for use as starter power sources. Please do not perform this operation.
-
Kind Reminding for Connections
Before you perform series or parallel connections with lithium batteries, please ensure that you have followed the above principles.
More Applications, More Possibilities
RV/VANS/Camper/Off-grid/Home Storage/Trolling Motors
Dimensions (Inches) | L260 x W168 x H209 mm (Group 24) |
Weight | 23.0lbs / 10.5kg |
Waterproof Rating | IP65 |
Warranty | 5 years |
Housing Material | ABS (Flame Retardant Plastic) |
Terminal | M8 bolts |
Cell | EV Grade A+ LiFePO4 Cells |
Nominal Voltage | 12.8V |
Nominal/Usable Capability | 100Ah |
Energy | 1280Wh |
Cycle Life | 5,000+ cycles @100% DOD, 6,000+ cycles @80% DOD, 15,000+ cycles @40% DOD |
Max Depth of Discharge (DOD) | 100% |
Max. Expansion | 4S4P |
Internal Resistance | ≤40mΩ |
BMS | 100A |
Max. Continuous Output Power | 1280W |
Max. Continuous Charge Current | 100A |
Max. Continuous Discharge Current | 100A |
Max. Discharge Current | 300±50A (≤5s) |
Charge Voltage | 14.6V ± 0.2V |
Charge Method | CC / CV |
Recommend Charge Current | 20A (0.2C) |
Charge Temperature | 0℃ to 50℃ / 32℉ to 122℉ |
Discharge Temperature: | -20℃ to 70℃ / -4℉ to 158℉ |
Storage Temperature | -10℃ to 50℃ / 14℉ to 122℉ |
Low-Temperature Protection | Yes (32℉/0℃) |
Low-Temperature Charging Protection Auto Recovery | Yes (41℉/5℃) |