Questions about Ledlenser 2x 14500 Li-Ion Rechargeable Battery Pack

According to the manufacturer's specifications, the battery is compatible with the iH9R, MH8 and MH7 models.

According to the manufacturer, the battery can only be charged in the lamp.

The product data are as follows: Voltage (V): 3.7 Capacity (Ah): 1.55 Technology: Li-Ion Weight (Kg): 0.060 Length (mm): 53 Width (mm): 29 Packing dimension: 16 x 7 x 2 cm