4BK-3HCCAW : 4.8 volt 2550mAh AA eneloop pro
4BK-3HCCAW: 4.8 volt 2550mAh eneloop pro rechargeable NiMH battery for RC receivers. These are AA-size cells - same size as typical receiver batteries, only with up to 5x more capacity than standard batteries. Arrives to you PRE-CHARGED & READY TO USE ! Eneloop Pro cells retain their charge when not in use for up to 5 years. Choose Pack Shape, choose Connector. Connectors are $ 3.00 extra.
You can also choose option of adding an extra Power Connector for $7.00 extra. Dimensions of flat pack: 2" tall x 2.3" across x 0.6" thick. 4.8v pack weighs about 4.2 ounces.