DSTE 2x LP-E5 Replacement Li-ion Battery for Canon EOS 450D 500D 1000D Kiss F X2 X3 Rebel XS XSi T1i Digital Camera Battery Type : Li-ion Battery Capacity : 15.5Wh/2100mAh Output Voltage : DC 8.4V (max)/ DC 7.2V (mean) Info Function for Life Indication High Capacity for Stamina Full coded version, show battery level in camera screen. No memory effect, can be charged or dischargered at anytime. Perform as good or better than the top branded batteries on the market.