i use whatever i can lay my hands on at the time. usually energizer lithium if they are on special anywhere. i tend to buy packs of 20+ at a time.
an AA will run a C-powered engine, but wont last as long and, if its not packed, it can move over bumps and fall out of position. [ive seen many complaints on amazon about battery compartments not being the right size for AA, always on engines that require a C.] some use a C for the weight up front. an AA simply wont hold them on the track properly
an AA will run a C-powered engine, but wont last as long and, if its not packed, it can move over bumps and fall out of position. [ive seen many complaints on amazon about battery compartments not being the right size for AA, always on engines that require a C.] some use a C for the weight up front. an AA simply wont hold them on the track properly
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