for Nest Thermostat 2nd Gen Battery: TL284443 Battery Replacement for Nest Learning Thermostat 2nd Generation gen 2 T200577 Smart Home with Tool

【TL284443 Battery Replacement】: Widely compatible with Nest Learning Thermostat 2nd Generation gen 2 T200577, part number: TL284443
【650mAh High capacity Battery】: Battery for Nest thermostat is made of high quality lithium polymer material, with a capacity of up to 650 mAh, which can provide you with safe and efficient charging
【Battery for Nest Thermostat gen 2】: Battery type: Li-Polymer, capacity: 650 mAh / 2.1 Wh, voltage: 3.7 V, weight: 12.1 g, size: 1.97 x 1.7 x 0.78 inch
【Battery for Nest Thermostat 2nd Generation】: TL284443 battery has no memory effect, with over-charging, over-discharging, overheating, over-current and short-circuit protection
【Battery for Nest Thermostat T200577】: New battery for Nest 2nd generation thermostat achieve optimal performance and longevity only after 3 to 5 full charge/discharge cycles