Camera Battery, 600mAh, Li-Ion
From Amazon
ANSMANN Li-Ion 3.7V Camera Battery Replacement For NB-11L / NB-11LH [Pack of 1] Compatible with Canon Cameras Including Canon PowerShot A2300, Digital IXUS 135, Ixus 185 & Many More - 5 Year Warranty
OnBuy
Ansmann A-Can NB-11L Lithium-Ion 600mAh 3.7V rechargeable battery