Over Heating Protection built in. upto 100 hours standby time + Quick charge support Premium Replacement Batteries for Samsung Galaxy S9 This replacement battery has an integrated microchip that prevents overcharging and lengthens battery life Latest Lithium Ion battery technology gives the best performance possible compared to other battery technologies such as Nickel Metal Hydride (Ni-MH).. The operation time of the battery depends on a variety of conditions including: transmitting power level, signal (distance between the phone and the base station), network parameters defined by the operator, phone features used, battery age & condition, charging habits, temperature, digital/analog mode, use of flashing lights, amount of time on standby and actual talktime, etc. The operation time of the battery depends on a variety of conditions including: transmitting power level, signal (distance between the phone and the base station), network parameters defined by the operator, phone features used, battery age & condition, charging habits, temperature, digital/analog mode, use of flashing lights, amount of time on standby and actual talktime, etc.