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
Small rectangular lithium battery pack, matte finish, labelled 3.7V 800mAh

Estry

Estry Battery Replacement for Schuberth C3 C3 Pro 800mAh 3.7V

SKU CH-MRAT-KE66P

Replacement lithium battery for Schuberth C3 and C3 Pro helmets, 800mAh capacity at 3.7V with 2.96Wh energy rating

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity800mAh
  • Battery Voltage3.7
  • 800mAh lithium cell powers Schuberth C3 and C3 Pro comms
  • 7V 2.96Wh pack matches original voltage and capacity specs
  • 2×19.5×9.2mm footprint fits the factory battery bay exactly
  • 0g lightweight unit keeps helmet balance unchanged
  • ISO9001 RoHS CE UN38.3 MSDS certified for safe reliable operation

Direct Replacement for Schuberth C3 and C3 Pro

This lithium-ion pack matches the original 3.7V 800mAh specification for Schuberth C3 and C3 Pro helmet communication systems. It fits the existing battery cavity without modification and restores factory run-time for riders who need a fresh power source.

Steady Output Through a Full Ride

The cell delivers a consistent 3.7V nominal voltage across the discharge curve, so the headset maintains stable audio and intercom performance from start to finish. Built-in over-charge, over-discharge, over-voltage and short-circuit protection prevents sudden shutdowns during long touring days.

Compact Sealed Cell With Certified Safety

Measuring 49.2 x 19.5 x 9.2 mm and weighing 42.0 g, the pack slides into the helmet's dedicated slot and sits flush against the liner. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certification, confirming compliance with transport and environmental standards for daily motorcycle use.

Highlights

  • 800mAh lithium cell powers Schuberth C3 and C3 Pro comms
  • 7V 2.96Wh pack matches original voltage and capacity specs
  • 2×19.5×9.2mm footprint fits the factory battery bay exactly
  • 0g lightweight unit keeps helmet balance unchanged
  • ISO9001 RoHS CE UN38.3 MSDS certified for safe reliable operation

Specifications

BrandSchuberth
TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity800mAh
Battery Voltage3.7

Questions about this item

How much heat does the 3.7 V 800 mAh pack generate during a full day of riding?

The lithium cell weighs 42.0 g and measures 49.2 x 19.5 x 9.2 mm, so it runs cool enough for helmet-mounted use without active cooling.

What must I already own to install this replacement in my helmet?

You need a Schuberth C3 or C3 Pro helmet with the original battery compartment and the matching part number listed in the manual.

Will the 2.96 Wh cell work with the original charging cradle I kept from my old C3?

Yes — the voltage and capacity match the factory spec, so the existing cradle charges it normally.

Also in this aisle

People compared these

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