UM3-8 : 8-cell AA holder, for Futaba, JR PROPO, etc.
UM3-8 : 8-cell AA holder, for Futaba Magnum Jr, etc. Holds 8 x AA batteries (typically Alkaline AA cells); provides up to 12VDC of power. Has 9-volt style snap connectors on end. Can be inserted into Futaba transmitters that accept NT8LP battery, or JR PROPO transmitters that accept JRPB958 battery. Certainly fits in other models as well. Dimensions: about 4.2" tall, 1.3" x 1.3" at base.
Can hold NiCd or NiMH AA cells as well (9.6VDC output).