- Overview
- Product Parameters
- Product Description
- Company Profile
- Certifications
- Packaging & Shipping
- FAQ
Basic Info.
Packaging & Delivery
Product Description
SYLJ Was Verified by TÜV Rhineland and Made in China & Offering Class A and 100% Authentic Cells
We were founded by bold explorers who share common visions in New Energy, who have been pursuing the best raw materials, advanced power electronics technology, excellent manufacturing processes and exquisite assembly structure in LiFePO4 battery field.
We have been a reliable companion to customers and we will keep providing excellent and durable LiFePO4 batteries for more diverse applications and bringing more vitality and green energy.

Product | LiFePO4 battery 12V 55Ah |
Nominal Voltage | 12.8V |
Rated Capacity | 55Ah |
Energy | 768Wh |
Cycle Life | 2000(@100% DOD) to 6000(@60% DOD) |
Discharge Cut Off Voltage | 10.0V |
Max charge/discharge current(Pulse charge/discharge 30s) | 3C-5C |
Max charge/discharge current(Continuous charge/discharge) | 1C/1C |
Recommended scope of SOC | 10%-90% |
Max. Charge & Discharge Current (continuous charge) | 1C |
Max. Charge & Discharge (30s)) | 3-5C |
Peak Discharge Current | 2C |
Storage Temperature(Short term with 1 month) | -20~45ºC |
AC Impedance Resistance(1KHz) | ≤0.5mΩ |
Storage humidity range | <95% |

4X Cycles Times with Cost-Effective 12V 55Ah lithium battery has 2000(@100% DOD) to 6000(@60% DOD) deep cycles & more than 5 year lifespan, while lead-acid battery only has 200-500 cycles & a 3-year lifespan. In terms of the lifetime, 1 pcs 12V 55Ah LiFePO4 battery is equivalent about 3-8pcs 12V 100Ah lead-acid battery which is definitely worthy for investment for a powerful and high quality life

55Ah lithium battery could connect max. 4P 4S to build a 48V(51.2V) 220Ah battery system, which could support 10.56KW max. load power, 12.28KWh max. Energy. So our lifepo4 55Ah is perfect for wide applications, such as home backup power, security devices, lights, solar systems, comping, RV, trolling motor (20-30lbs thrust), marine, boat, fishing finder etc.

A Grade Cells & Advanced Technology 55Ah LiFePO4 battery is manufactured with advanced technology in the industry. And they are manufactured by Grade A LiFePO4 Cells with higher energy density, more stable performance & greater power. Highest-level safety based on testing certificates for the cell. 12V 55Ah LiFePO4 Battery has excellent and reliable performance with sufficient battery capacity.
Battery series/parallel connection premise
·The same brand
·Recent purchase (within 3 months)

LEARN MORE -
About The Easy To Install BMS Smart App
BLUETOOTH PHONE INTERFACE for displaying battery information on your phone! 12V Lithium batteries can also be connected two in parallel to double the Amphours or two in series to make 24V. The built-in 100AMP DALY Battery Management System is easily accessible via a phone APP.
In the App you will be able to monitor and check the battery's current state of charge, current voltage, current cycles status and temperatures, individual cell voltages and the minimum and maximum voltages.
The BMS provides temperature sensors (for prismatic cells and BMS itself) protecting against over-charging, over-discharge and short-circuiting and also amplifies the battery lifespan. The no memory effect means this battery can be charged and used at any time in any condition, so no need to discharge the battery before charging.
Our Batteries & Solar stand by our promise to offer the best prices and exceptional service on Deep Cycle Batteries, AGM Deep Cycle Batteries, portable solar panels, inverters, solar regulators, solar panels for camping and a 12 Volt Shop for appliances such as 12V portable fridges & solar fridge freezer setups. We are the experts in 12v/24V/48V/60v/72v Battery & Off Grid Power solutions for a range of applications and offer fast and efficient shipping and Batteries & Solar are experts in providing advice to help you get the best Batteries Direct including; Lithium Deep Cycle Batteries, 12V AGM Batteries, Solar Batteries, Dual Battery Systems, Deep Cycle Batteries, AGM Batteries, Gel Batteries, Carbon Lead Batteries, Marine Batteries, Caravan Batteries, Battery Monitoring Systems, Battery Banks, Battery Boxes and Battery Chargers.


A: Yes, we welcome sample order to test and check quality.
Q2. What about the lead time?
A:Sample needs 5-10 days, mass production time needs 25-30 days.
Q3. Do you have any MOQ limit for Battery?
A: Low MOQ, 1pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by UPS, TNT... It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order for Battery?
A: Firstly let us know your requirements or application.Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order.Fourthly We arrange the production.
Q6. Is it OK to print my logo on Battery?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7: Do you offer guarantee for the products?
A: Yes, we offer 1-2 years warranty to our products.
Q8: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.
Secondly, during the guarantee period, we will send new batteries with new order for small quantity. For defective
batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.