FDK (formerly Sanyo) AA size cell. Perfect to build your RX and TX packs. Some uses for S-400, up to 14 amp range though not common. It is the same size as any "AA" cell, but with flat ends instead of button end. We carry these for those that desire to build their own custom soldered packs. The flat ends make it much easier to solder. These may function in some digital camera and similar devices but they may not due to missing "button". Manufacturers listed internal resistance is 25Ω.

Specifications:

Dimensions: 0.56" (L) x 0.56" (W) x 1.97" (H)

Dimensions (mm): 14.2 mm (L) x 14.2 mm (W) x 50 mm (H)

Weight: 0.99oz