We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular Ni-MH battery pack, dark wrap, 199.9 x 16.5 x 14.5 mm

Estry

Estry B310011 Ni-MH 4.8V 1800mAh standard battery

SKU CH-MC2W-G5XG3 MPN B310011

Ni-MH 4.8V 1800mAh replacement pack for B310011 devices with overcharge and short-circuit protection

  • Battery pack size1 Year
  • Details4.8
  • Direct replacement for B310011 devices
  • 8V 1800mAh capacity delivers 8.64Wh energy
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Compact 199.9 x 16.5 x 14.5mm form factor weighs 256.8g

Chemistry and capacity

This Estry B310011 is a nickel-metal-hydride pack rated at 4.8 volts and 1800 milliampere-hours. It delivers 8.64 watt-hours of energy and measures 199.9 by 16.5 by 14.5 millimetres at 256.8 grams. The pack carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits.

Direct replacements only

The cell is manufactured to match the original B310011 specifications for drop-in compatibility. Buyers who need a different voltage, a higher capacity or a lithium-based chemistry should look elsewhere. It is not suited for devices that require proprietary communication protocols or non-standard form factors.

4.8 volt nominal voltage

The single specification that decides fitment is the 4.8 volt nominal voltage. If the host equipment demands any other voltage the pack will not operate correctly. Capacity, dimensions and certifications are secondary to this electrical requirement.

How it compares

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

Price $17.99
Pricier than about 73% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameNi-MH
Model name1,800 mAh
In the box
Battery pack size1 Year

Questions about this item

What device model must I already own for this Estry B310011 battery to fit?

The battery is a direct replacement for the Corun B310011 model, matching the original specifications exactly.

Will the 4.8V 1800mAh output work with the original charger I still use?

Yes, the voltage and capacity match the original pack, so the existing charger will charge it normally.

How can I verify the 8.64Wh pack is working correctly after installation?

The device should power on and run for the expected duration; the pack includes overcharge, over-discharge, over-voltage and short-circuit protection for safe operation.

More in Household Batteries & Chargers

Similar items