iTEKIRO 800mAh Replacement Battery for Polaroid t1031 t1035 t1234 t1235 t1235uc Digital Cameras (NOT for Polaroid ZK01) 800mAh higher capacity compared with original 720mAh Made with high quality cells for the best performance The battery's integrated microchip prevents overcharging & lengthens battery life Lithium Ion chemistry type has no "memory effect" Backed by 30 days money back guarantee and 1 year replacement warranty