12V 20Ah LiFePO4 Battery
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IEC/CE-EMC/CE-ROHS/CE-Battery/FCC-SDOC/UD38.3/MSDS
⚡Compact: 7.3 x 3.3 x 6.7 In | 4.52 lbs
⚡Safe: Low-temperature cut-off protection
⚡Premium: EV grade A+ LiFePO4 cells
⚡Durable: 5,000-15,000 deep discharge cycles & 10 years lifetime
⚡Reliable: Built-in 20A BMS | 256W | 256Wh
⚡Scalable: Max. 4S4P, up to 4.096kWh
⚡Waterproof: IP65
⚡Certifications: MSDS / UN38.3 / FCC / CE / ROHS / UL
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12V 20Ah LiFePO4 Battery
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Features
- Safe and Reliable Materials: Made from 100% safe, non-toxic, and eco-friendly energy, our batteries offer higher chemical stability, guaranteeing quality and safety.
- Compact: Our 12V 20Ah lithium iron phosphate batteries are compact and lightweight, measuring just 7.3 x 3.3 x 6.7 inches and weighing only 4.52 lbs.
- BMS Safety Guard: An intelligent battery management system protects against overcharging, deep discharging, overloading, overheating, low temperatures, and short circuits.
- Long-lasting Use: Utilizing Grade A+ cells from the high-end manufacturer EVE, our 20Ah LiFePO4 battery boasts a lifespan of up to 10 years, withstands up to 15,000 cycles, and supports 4S4P configurations, with a capacity of up to 4.096kWh.
- Low-temperature Protection: It operates in a wide temperature range (-4℉ to 158℉ / -20℃ to 70℃). It automatically shuts off at low temperatures, ensuring maximum protection and performance in diverse environments.
- Portable Power Solution: Combining high energy density with a compact design, the battery is perfect for small devices like surveillance equipment and children's toys. Its portability allows you to carry it easily in a backpack for on-the-go power.
Tech Specs
GENERAL
| Dimensions (Inches) | 7.3 (L) x 3.3 (W) x 6.7 (H) |
| Weight | 4.52lbs / 2.05kg |
| Waterproof Rating | IP65 |
| Warranty | 3 years |
| Housing Material | ABS (Flame Retardant Plastic) |
| Terminal | M5 bolts |
BATTERY
| Cell | EV Grade A+ LiFePO4 Cells |
| Nominal Voltage | 12.8V |
| Nominal/Usable Capability | 20Ah |
| Energy | 256Wh |
| 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 (Parallel & Series) | 4S4P |
| Internal Resistance | ≤40mΩ |
BMS
| BMS | 20A |
| Max. Continuous Output Power | 256W |
| Max. Continuous Charge Current | 20A |
| Max. Continuous Discharge Current | 20A |
CHARGE
| Charge Voltage | 14.6V ± 0.2V |
| Charge Method | CC/CV |
| Recommend Charge Current | 40A (0.2C) |
| Charge Temperature | 0℃ to 50℃ / 32℉ to 131℉ |
| Discharge Temperature： | -20℃ to 55℃ / -4℉ to 131℉ |
| Storage Temperature | 0℃ to 55℃ / 32℉ to 131℉ |
| Low-Temperature Protection | Yes (32℉/0℃) |
| Low-Temperature Charging Protection Auto Recovery | Yes (41℉/5℃) |
Youtube Reviews
Reviews
User Manual
Let customers speak for us
![[Spring Deal] 12V 628Ah Bluetooth LiFePO4 Battery | 300A BMS | 8038Wh](https://judgeme.imgix.net/wattcycle-ca/1762222606__20251023_101700__original.jpg?auto=format&w=84)
It has been in operation now for 6 days.
We are happy with this product.
We are suppliers and installers of off-grid solar systems and Wattcycle is now on our supplier list.
We just bought a second battery!
![[Spring Deal] 12V 314Ah MINI Bluetooth LiFePO4 Battery | 200A BMS | 4019Wh](https://cdn.shopify.com/s/files/1/0662/4752/4506/files/WattCycle-12V-314Ah-MINI-Bluetooth-Lithium-Battery_da4a24c2-d0b1-4efc-ba30-111b195bada5_84x84.webp?v=1765355514)
New to Li and solar controllers. 67yo retired tradesman so not afraid of installations as a whole. The app was painless to work with for me. Installed in an aluminum truck tool box and at 25' away I have Bluetooth connectivity. So far no problems with cell balances. I will consider buying a second.
![[Spring Deal] 12V 100Ah 1200CCA Bluetooth LiFePO4 Battery with Self Heating | 200A BMS | 2560Wh](https://cdn.shopify.com/s/files/1/0662/4752/4506/files/WattCycle-12V-100A-LiFePO4-Battery-with-Bluetooth-1200CCA_84x84.webp?v=1765355473)
Still waiting to try it out all charged and the app hooked up seamlessly. Like the weight much lighter than a comparable lead acid battery
![[Spring Deal] 12V 100Ah Bluetooth Battery for 30~70 lbs Trolling Motors | 120A BMS | 1280Wh](https://judgeme.imgix.net/wattcycle-ca/1754386048__1754386046391-20250718_172117__original.jpg?auto=format&w=84)
⭐⭐⭐⭐⭐ Reliable Power and Smart Monitoring – Perfect for Trolling Motors!
I've been using the Wattcycle 12V 100Ah TM Battery with Bluetooth on my trolling motor setup, and it's been an outstanding upgrade. The power delivery is consistent, even during long days on the water. No unexpected drop-offs or performance issues—just solid, reliable output.
The built-in Bluetooth monitoring is a huge plus. I love being able to check the battery's status right from my phone—voltage, temperature, state of charge, and more. It gives me full confidence while out fishing, knowing exactly how much battery I have left at all times.
The battery is lightweight, charges fast, and feels built to last. It’s clear Wattcycle put serious thought into both performance and convenience.
Highly recommended for anyone needing a dependable and smart battery for trolling motors!
![[Spring Deal] 12V 314Ah MINI Bluetooth LiFePO4 Battery | 200A BMS | 4019Wh](https://judgeme.imgix.net/wattcycle-ca/1753404981__1753404756334-20250722_161955__original.jpg?auto=format&w=84)
Purchased 2 314AH smart mini so far so good. Did a 150Amp draw down to 58% SOC after 3 hours, ran out of time to take it longer, this test exceeded expectations. Look forward to testing it when traveling next week.
![[Spring Deal] 12V 100Ah LiFePO4 Battery | Group 24 Size | 100A BMS | 1280Wh](https://cdn.shopify.com/s/files/1/0662/4752/4506/files/WattCycle_12V_100Ah_Group_24_LiFePO4_Battery_84x84.webp?v=1765355708)
I purchased this battery primarily to replace the heavy 100A.Hr deep cycle lead acid battery that I use for my trolling motor, and secondly as an increase of capacity to my 2000 watt "solar generator" (portable back up power supply).
I did a brief test with the battery in both applications and it performed exactly as expected. On the surface it appears to be sturdy, attractive and well made. The weight makes it easy to move and so far, I am very satisfied with my purchase. My only regret is not spending a few dollars more on the unit with bluetooth communication.
![[Spring Deal]12V 100Ah Mini Bluetooth LiFePO4 Battery | 100A BMS | 1280Wh](https://judgeme.imgix.net/wattcycle-ca/1752202802__1752202784346-20250707_164757__original.jpg?auto=format&w=84)
Just got my order of 2-100amp batteries to power my 24v 78 lbs thrust outboard. Can't wait to get on the water. Bluetooth works greatand the reason I chose these.
![[Spring Deal] 12V 100Ah LiFePO4 Battery | Group 24 Size | 100A BMS | 1280Wh](https://judgeme.imgix.net/wattcycle-ca/1750955885__1750955879531-20250618_114542__original.jpg?auto=format&w=84)
I'm happy that your batteries are now available in Canada. Wattcycle is the ones I wanted after looking for quality at a good price. I made a short video on YouTube showing off my new batteries. I want to buy 2 more 100ah batteries in the near future to complete my little portable power station. I'll be making a video about that also. Thanks for putting out a good product.
Bill Prowse is the best source on Youtube when it comes to analyzing anything to do with Lithium batteries, not to mention solar power systems. His review of the Watt Cycle 12 volt LiFePo4 battery was strongly positive. I've been using it now for a few weeks and feel confident that it was a great purchase and it should provide years of reliable service.
I needed to upgrade from my heavy and low capacity Lead Acid RV batteries.
After some YouTube research and on-line shopping, I came to the conclusion the WattCycle Group 24 100 AH battery was the best combination of performance, user ratings and price. For me this is a very good value.
A small customer service issue was dealt with and resolved quickly. The batteries were shipped quickly. Thank you.
I finally made the move to LiFePO4 batteries in my RV. The original Lead Acid worked but were lacking in usable capacity, and were heavy.
After a bit of YouTube research and on-line shopping, I chose the WattCycle. It's a very good battery, with very good on-line reviews, good tested performance and overall for me results in a battery with very good value.
With this kind of investment I knew the best thing would be a LiFePO4 specific charger. This one was made by WattCycle specific for the Batteries I bought. With a package deal (with the Batteries I brought) the pricing was perfect. It charged the batteries quickly and was relatively quiet.
Shipping was fast. Thank you.
