At the risk of sounding sarcastic, which seems to be frowned upon on this site, if you look inside of the battery holder, there is a diagram for each of the slots with a (+) sign to put the batteries in the correct direction.
Larry
At the risk of sounding sarcastic, which seems to be frowned upon on this site, if you look inside of the battery holder, there is a diagram for each of the slots with a (+) sign to put the batteries in the correct direction.
Larry
Standard configuration the springs are all marked - (neg) on mine. If you really have no markings it may have been a clone holder or maybe for something else? Should have the sticker on the end saying it is only for rechargeables.