Kastar NP-FH50 7.4V 1200mAh battery for Sony HDR-UX3 UX5 UX7 UX9 XR100 XR105 XR106 XR200 XR500 XR520

Kastar NP-FH50 lithium-ion battery

The Kastar NP-FH50 is a 7.4V 1200mAh lithium-ion replacement battery designed for a wide range of Sony Handycam, Cyber-shot and Alpha models. It supplies 8.88 Wh of energy in a single-cell pack and includes built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating. The cell meets UL1642 and CE safety standards for reliable operation.

Sustained recording performance

During continuous video capture the pack delivers a steady 7.4 V output without the voltage sag seen in lower-grade cells, keeping the camcorder running until the protection circuit triggers at the safe cut-off point. The 1200 mAh rating translates into extended recording sessions compared with the original NP-FH30 or NP-FH40 packs, and the protection circuitry prevents deep discharge that would shorten overall cycle life.

Thermals and power draw

In normal use the battery remains cool to the touch because the internal protection circuit limits current to the camera's design envelope, eliminating excess heat from over-current conditions. No active cooling is required and the pack adds no audible noise to the recording environment. Power draw follows the camcorder's own consumption profile, so the battery simply matches the load without introducing additional losses.