CooLook D Battery Converter

Plenty of older Nerf blasters were built around bulky D-cell battery compartments, which locks you out of using the smaller upgrade cells the modding community runs. The CooLook D Battery Converter solves that by adapting a D-cell slot to accept AA-sized batteries instead, and it's specifically recommended for use with the LifePo4 batteries sold separately on this site rather than off-the-shelf AA cells.

Note that as of a batch change on 6/7/2021, these converters ship in white rather than the earlier colour, so don't be surprised if yours doesn't match older photos floating around. Do not charge these batteries — treat that as a hard rule for this converter, no exceptions. It's a cheap way to keep an older D-cell blaster running on modern battery options instead of hunting for increasingly rare D cells.