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Small rectangular Ni-MH battery pack with green label, 46 by 42.5 by 11 mm

Estry

Estry F30 4.8V 900mAh standard battery

SKU CH-N7H4-1SDED MPN F30

Ni-MH 4.8V 900mAh replacement battery compatible with multiple BMW models including F30, F12, F36, F25 and F31 series

  • Specifications4.8
  • Battery Pack1 Year
  • Exact-spec replacement matches original battery performance
  • Built-in protection prevents overcharge, over-discharge and short circuits
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Fits F30, F12, F36, F25 and F31 model ranges
  • Compact 46.0 x 42.5 x 11.0 mm design weighs 80.0 g

Direct Replacement Battery

The Estry F30 is a Ni-MH battery built to original specifications for several vehicle models including the F30 340i, F12 640i xDrive, F36 435i, F25 X3 sDrive28i and F31 328i. It matches part numbers 9297787, 9371789 and 84109297787 so owners can swap the original unit without modification. Buyers needing a different voltage or a higher capacity pack will not be served by this model.

Thermals Noise and Power Draw

The 4.8V 900mAh cell delivers 4.32Wh of energy and weighs 80.0g within a 46.0 x 42.5 x 11.0mm housing. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications and includes overcharge, over-discharge, over-voltage and short-circuit protection for safe daily operation. No active cooling or audible components are present.

Sustained Load Behaviour

Each unit undergoes strict specification detection and use testing before shipment and is covered by a one-year battery-pack warranty. The protection circuits maintain stable output during extended draw, preventing damage from deep discharge or voltage spikes. Installers should verify the exact model and part number before fitting.

Highlights

  • Exact-spec replacement matches original battery performance
  • Built-in protection prevents overcharge, over-discharge and short circuits
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Fits F30, F12, F36, F25 and F31 model ranges
  • Compact 46.0 x 42.5 x 11.0 mm design weighs 80.0 g

Specifications

BrandNi-MH
Model900mAh
Specifications4.8
Battery Pack1 Year

Questions about this item

How do I install the Estry F30 4.8V 900mAh battery and which step is often missed?

Remove the old pack, match the 46.0 x 42.5 x 11.0 mm dimensions, connect the leads observing correct polarity, then secure the pack — the step most people skip is verifying the part number 9297787 or 9371789 against the vehicle label before fitting.

What maintenance or replacement will the Estry F30 4.8V 900mAh battery need later?

The Ni-MH 900 mAh pack is rated for about one year of service; plan to replace it when capacity drops below usable levels, and always swap in a unit with the same 4.8 V, 900 mAh, 4.32 Wh ratings and matching part numbers.

What limit appears first on the Estry F30 4.8V 900mAh battery during sustained use?

Continuous draw is limited by the 900 mAh capacity and the built-in over-current protection; once the 4.32 Wh reserve is depleted the pack voltage falls and the protection circuit cuts output to prevent over-discharge.

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