Take your deep cycle battery experience to the next level by investing into HQST's Lithium Iron LiFePO4 Battery, combining superior lithium-iron phosphate technology to provide a better solution to solar energy storage. Weighing at just a bit over 25 lbs, HQST's LFP battery surpasses expectation by being lighter, compact, and more powerful than its lead-acid battery counterparts of 100Ah. Designed to replace conventional solar battery storage units such as sealed, AGM, or Gel batteries, utilize your LFP battery in power-sport applications, off-grid applications, solar energy storage, and more! Take a step into the right direction by pairing your solar system with one of the safest and highest-cycle battery chemistry yet. Note: ● Please be aware that if the batteries' Battery Management System (BMS) is activated and the battery voltage shows 0V, you must use a compatible Li charger to reactivate our Li batteries. ● Make sure to tightly screw the battery terminals in, having loose battery terminals will cause the terminals to build up heat resulting in damage to the battery. ● DO NOT connect this battery in series. It is made ONLY for parallel connections using identical batteries.