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Rectangular nickel-zinc battery pack, 56.70 by 51.00 by 16.20 mm, grey plastic casing with connector

Cameron Sino Battery for Amadeo A-Lock ST50 PN:Amadeo ST50.BP.02 390mAh 6.0V

SKU CH-47KG-2XCN2

Nickel-zinc replacement battery for Amadeo A-Lock ST50 door locks, 390 mAh at 6.0 V

  • Battery pack size56.7 × 51 × 16.2
  • Battery typeNickel zinc
  • Battery capacity390 mAh
  • Battery voltage rating6 V
  • Details56.7 × 51 × 16.2
  • Product typeNickel zinc
  • Replacement battery fits Amadeo A-Lock ST50 door locks
  • 390mAh nickel-zinc chemistry delivers 2.34Wh at 6.0V
  • Dimensions 56.70 x 51.00 x 16.20mm match original housing
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • ISO9001, RoHS and CE certified for safety compliance

Direct replacement for Amadeo A-Lock ST50

This nickel-zinc battery pack matches the original Amadeo ST50.BP.02 part with a 390mAh capacity and 6.0V output. Dimensions are 56.70 x 51.00 x 16.20mm and weight is 94.0g. It is built to the same specifications and includes a fully decoded chip for direct compatibility.

Nickel-zinc chemistry limits practical use

The 2.34Wh energy rating suits low-drain door-lock electronics but cannot support high-current or outdoor-temperature demands. Storage above 60°C or 140°F is prohibited and the pack must not be disassembled or exposed to fire or water. A new cell reaches full performance after two or three complete charge cycles.

Upgrades from a depleted or failing original pack

The jump is worth it when the lock shows reduced runtime or unreliable operation. Overcharge, over-discharge, over-voltage and short-circuit protections improve safety over unprotected cells. Buyers who need a different voltage, higher capacity or a chemistry rated for extreme temperatures cannot use this pack.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $11.99
Pricier than about 55% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameCameron sino
Model nameAmadeo A-Lock ST50
Part numberAmadeo ST50.BP.02
Product typeNickel zinc
Power
Battery typeNickel zinc
Battery capacity390 mAh
Battery voltage rating6 V
In the box
Battery pack size56.7 × 51 × 16.2

Questions about this item

Which capacity should I choose for the Amadeo A-Lock ST50?

This pack is only offered as a single 390mAh / 2.34Wh nickel-zinc unit, so there is no capacity choice to make.

What does the 390mAh rating mean once the battery is installed in the lock?

It delivers 6.0 volts and 390 milliamp-hours, matching the original ST50.BP.02 specifications for the same runtime per charge cycle.

What interface does this battery use and what does it limit in practice?

It connects with the original ST50.BP.02 connector; the nickel-zinc chemistry caps voltage at 6.0V and capacity at 390mAh, so the lock cannot draw more than the pack provides.

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