BBK phone schematic Saintish 12V deep cycle lithium batteries are with similar dimension as lead acid batteries, but it is only 1/3 of the weight of lead acid, and delivers twice power, the max.continuous discharge current up to 100A. Deep Cycle 12.8V Lithium Battery, Rechargeable LifePO4 Battery, 12V Lithium Battery System Hangzhou Saintish Technology Co.,Ltd. , https://www.saintishtech.com
The built-in battery management system can monitor each prismatic cells status during battery working. It protects the lithium battery from over charge/discharge, over temperature and short circuit.
Our deep cycle lifepo4 batteries accept maximum of 4pcs in series connection or 4pcs in parallel connection in order to increase the overall capacity.
The bluetooth function is optional for saintish lithium batteries. But for these without app monitoring batteries, the quality is for sure not reduced. It is just at another level price at same quality.