GSL's 12V lithium battery has the outstanding features of large capacity per unit weight, high discharge power, fast charging, long cycle life, and high stability under high temperature and high heat environment. The product has a 80% depth of discharge. One important advantage over other lithium-ion chemistries is its thermal and chemical stability, which improves the battery safety. With the combination of LiFePO4, the product can perform a more stable redox reaction and faster ion migration. The other is that it offers a longer cycle life. It has a very constant discharge voltage which can always stay stable until the cell is exhausted. This allows the cell to deliver virtually full power until it is discharged, and it can greatly simplify or even eliminate the need for voltage regulation circuitry. The battery back is impact-proof and is tested to be able to sustain heavy external shocks without risk of explosion.