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, light grey plastic case, two wire leads, 78 by 52 by 15 mm

Estry

Estry Standard Battery 7.2V 700mAh MBM06MH

SKU CH-C42A-PVNW4

7.2 V 700 mAh Ni-MH pack replaces Modular MJ, MK and Sirio 42 transmitters with over-charge and short-circuit protection

  • Specifications7.2
  • Battery Pack1 Year
  • Exact-fit replacement for Modular MJ and MK transmitters
  • 2 V 700 mAh Ni-MH pack delivers 5.04 Wh runtime
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards
  • Compact 78.28 x 52.4 x 15.48 mm, 149.0 g design fits original battery compartment

Replacement Battery for Modular Transmitters

This Estry Ni-MH pack replaces the MBM06MH cell used in Modular MJ, MK and Sirio 42 radio controllers. It delivers the original 7.2V specification so the transmitter powers up without modification. The pack is built to the same dimensions as the factory unit for a direct fit. Buyers needing a different voltage or connector type should look elsewhere.

Capacity and Runtime Headroom

Rated at 700mAh and 5.04Wh, the battery supports typical sport flying sessions before requiring a recharge. Runtime shortens noticeably when the transmitter drives high-power RF modules or backlit displays continuously. The cell chemistry does not support fast-charge rates above the standard wall-wart current. Pilots planning all-day events without charging access will find the capacity limiting.

Ni-MH Chemistry and Safety Limits

The pack uses nickel-metal-hydride cells protected against overcharge, over-discharge, over-voltage and short circuits. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications for transport and environmental compliance. Self-discharge is higher than lithium alternatives so the transmitter should be topped up before each use. The chemistry cannot deliver the sustained current peaks some modern telemetry systems demand.

Highlights

  • Exact-fit replacement for Modular MJ and MK transmitters
  • 2 V 700 mAh Ni-MH pack delivers 5.04 Wh runtime
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards
  • Compact 78.28 x 52.4 x 15.48 mm, 149.0 g design fits original battery compartment

Specifications

BrandNi-MH
Model700mAh
Specifications7.2
Battery Pack1 Year

Questions about this item

Will this 7.2V 700mAh pack fit the Modular MJ04 and E16 Sirio 42 transmitters I already own?

Yes, the pack is listed as compatible with both the Modular MJ04 and the E16 Sirio 42 models.

How can I confirm the battery is working correctly once installed in my transmitter?

The transmitter should power on normally and show its usual voltage indication; the pack includes overcharge, over-discharge, over-voltage and short-circuit protection.

What comes in the box and do I need to buy a charger separately?

The listing describes a single replacement battery pack; a compatible Ni-MH charger is not included and must be purchased separately if you do not already have one.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.