Estry ST100-P 12V 300mAh Ni-MH standard battery

Replacement Ni-MH pack for specific models

This 12 V 300 mAh nickel-metal hydride battery replaces the original pack in Estry ST100-P, Prohunter SD-2400 and SWR-1 devices. It matches the factory voltage and capacity specifications and includes overcharge, over-discharge, over-voltage and short-circuit protection circuits. The single-pack unit is supplied new and carries ISO 9001, RoHS, CE, UN 38.3 and MSDS certifications.

Practical limits of Ni-MH chemistry

Nickel-metal hydride cells self-discharge faster than lithium types and deliver lower energy density for the same physical size. Capacity drops noticeably in cold temperatures and the pack should be cycled occasionally to maintain full runtime. The built-in protection board prevents damage from deep discharge or accidental shorts but cannot overcome the chemistry’s inherent voltage sag under heavy load.

Check your device before ordering

Verify that your equipment lists the exact model ST100-P, Prohunter SD-2400 or SWR-1, or the part numbers DC-26, 650-053 or MH700AAA10YC. Confirm the battery compartment accepts the 86.97 x 28.5 x 21.13 mm dimensions and 188.2 g weight. Ensure the connector polarity and wiring match the original pack, as an incorrect fit will prevent operation.