eForCity Standard Lithium-ion Replacement Battery Compatible with T-mobile HTC G1 Google Phone Smartphone Stay connected with families and friends by getting extra battery power today! Keep an extra battery charged and handy for those long meetings and conversations. This replacement battery has an integrated microchip that prevents overcharging and lengthens battery life. Best replacement for the original battery with comparable standby and talk time. Great bargain with excellent quality guaranteed! Compatible With: Google: Android .HTC: Dream.T-Mobile: G1.