HNN9010AR Battery Intrinscally Safe Battery. 7.5 Volts, 1800 Milliamps, Nickel Metal Hydride Chemistry, Inrinsically Safe.

Compatible Radio Models:
GP320, GP340, GP360, GP640, GP680, GP1280,
HT750, HT1250, HT1250LS, HT1250LS+, HT1550, HT1550XLS,
MTX960, MTX150, MTX450, MTX1500, MTX4500, MTX8250, MTX8250LS, MTX850, MTX850LS, MTX9250, MTX950,
PR860, PRO5150, PRO5350LTR, PRO5450MPT, PRO5550PP, PRO5750SZ, PRO7150, PRO7350LTR, PRO7450MPT, PRO7550PP, PRO7750SZ, PRO9150.

This Battery is Cross Compatible with the following batteries: HNN9008A, HNN9008B, HNN9009, HNN9009A, HNN9009AR, HNN9013, HNN9013DR, HNN9012BR

You can also use the empty CLAMSHELL with (12 AA batteries) that will create 5000mAh-- part number NNTN5332A