Matrix High Output Small Type Airsoft NiMH Battery (Configuration: 9.6V / 1600mAh / Small Tamiya)

"Low RPS compared to my other 9.6 battery of the same type (Intellect Custom NiMH Airsoft Battery Pack for Airsoft AEGs (Size: 9.6V 2000mAh / PEQ Box / Small Tamiya))

"I own three. One is from Tenergy, the other two are Matrix. The Matrix ones died on me. I've not fielded them intensely, only tested them. I'd recommend a better company, but for the price, these work. Use these on stock guns.