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12V 800Ah lithium battery pack 10240Wh for yacht boats GSL12800

Catelogue: Boat Marine Yachts


1.High energy density , light
2.High cycle life and long calendar life with over 3K times
3.Very high charge/discharge energy efficiency
4. Virtually 100% charge/discharge coulomb efficiency
5.Very low self-discharge rates.


Product Details :

12V 800Ah lithium battery pack 10240Wh for yacht boats GSL12800

Our lithium battery Smart Chargers & BMS Systems 

Our solution is lithium-cells agnostic. Our systems include chargers, Battery Management System (BMS), gauges, wiring and accessories. GSL lifepo4 lithium battery system is uniquely designed for agility and ease-of-installation, while bearing the obvious advantages of lithium-ion batteries over lead-acid solutions.
Strong Power Discharge VS Lead Acid Battery

Lithium (LFP) batteries have strong advantages over lead acid (LA) for use in cruising yacht house batteries. In practice LA batteries on boats often only last about 500-600 cycles. This is due to the heat in the tropics and difficulty in fully charging LA batteries with the boat systems, leading to sulfication.
With LFP these two problems do not happen. Some yacht LFP systems have been in successful operation for 4 years and are living up to their promise. 

LFP battery banks on yachts are typically in the range of 200AH to 800AH. 

Many yachtsmen would like to switch to LFP batteries but are discouraged by a) the complexity of converting to LFP and b) the cost of LFP. While LA replacement packs are a step in the right direction,
they do not fully address the requirements of yacht systems, and this document will expand on this.
The house battery on an RV (recreational vehicle) will probably have very similar design requirements as that of a house battery on a yacht, and any product developed for yachts will probably also apply to RVs. On a yacht, safety is the very first consideration. There is no inherent problem with LiFePO4 batteries which are considered by many to be safer that LA, but consideration must be given to how they are used, especially as electrical power is critical for navigation, radio and other safety equipment. The second important issue is extending the life of the expensive battery pack for as long as possible. The suggestions in this document address these issues.
Cruising yachtsmen generally are more technically orientated than most as they need to be able to repair and adjust systems in remote locations. Therefore the LFP battery pack can have comprehensive user settings which may not desirable on a simple LA replacement pack.
These suggestions are for a house battery, which has low C charging and discharge rates, compared to an EV or engine start applications with high C requirements.

High energy density by weight and by volume; 
Superior safety performance due to patented new safety valve and pressure cap designs; 
Batteries do not explode or catch fire when batteries are shorted or punctuated resulting in internal shorts; 
More robust connection due to new electrode terminal design using four screws per terminal; 
Prevents loose connections caused by vibration; 
Reduced impedance due to improved electrode terminal design; 
Cell structure easily facilitates BMS integration and battery pack formation.


Basic Specification of 12V 800Ah Battery Pack

Nominal Capacity @ 0.2C


Cell connect way


Nominal Voltage


Total Cell Quality


Discharge Cut-off Voltage


Cell Type

200ah 3.2v

Charge Cut-off Voltage




Charge Current


Weight (including case)

125.5 kg

Continuous Discharge Current


Charge Temperature Range


Peak Discharge (max. 10 sec. duration)


Discharge Temperature Range


Cycle Life (1C/1C 100% DOD)

3000 cycles

Charge Method