4Pack 12V 100Ah LiFePO4 Lithium Batteries,up to 10000+ Cycles,TCBWORTH,Support Series and Parallel

100% safe, nontoxic, renewable energy. LiFepo4 battery will not burn when overcharged, over discharged, over current or short circuit, and can withstand high temperatures without decomposition. BMS inside can handle cell balancing, low & high voltage cutoff, short circuit protection and temperature protection. Without memory effect, no matter what state the battery is, it can be used as soon as it is charged.

5 Years Warranty. Support returns and exchanges. If there is any problem with the battery, please provide a detailed description, and we will provide you with warranty service according to your description.

The size of the positive and negative terminals is M8.The battery switch only controls USB, you can use USB to charge your mobile phones or tablets or other devices. Regardless of whether the battery switch is turned on, you can charge or discharge the battery. In addition, the battery has more than 10,000 deep cycles,Life expectancy is usually 10 years, which is much more cost-effective than lead-acid batteries