poor instruction manual [SEP] poor instruction manual it shows batteries inserted wrong direction also the handle is where the batteries go the housing is so small i had to hunt for batteries that would go in without getting stuck no rechargeable brand i had fit i tried high drain alkalines they would stick cheap carbon zinc bats fit but give poor performance my unit is not broke or put together wrong its just designed poorly batteries in country of origin china must be much narrower in diameter than us market batteries i would not recommend this product untill they redesign the battery compartment to give it about more inside diameter you really want nimh rechargeables in this device