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Rectangular lithium battery pack, matte finish, 74.8 by 37.1 by 19.0 mm

Estry

Estry 5E42E9 Replacement Battery 3400mAh 7.4V

SKU CH-1FCT-CJXWQ

Replacement lithium battery for Ring Alarm Home Base Pro Station, 3400mAh at 7.4V with overcharge and short-circuit protection

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity3,000 mAh
  • Battery voltage rating7.4
  • Product typeBatteries
  • Exact-fit replacement for Ring Alarm Home Base Pro Station
  • 3400 mAh lithium cell delivers 25.16 Wh of runtime
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Built-in over-charge, over-discharge, over-voltage and short-circuit protection
  • Compact 74.8 × 37.1 × 19.0 mm form factor weighs 128.0 g

Estry 5E42E9 Replacement Battery

The Estry 5E42E9 is a lithium-ion replacement battery designed for the Ring Alarm Home Base Pro Station. It delivers a nominal voltage of 7.4V and a rated capacity of 3400mAh, providing 25.16Wh of energy. The pack measures 74.8 x 37.1 x 19.0mm and weighs 128.0g. It arrives new and includes overcharge, over-discharge, over-voltage and short-circuit protection circuits.

Drop-in fit for the Home Base Pro Station

The cell slides directly into the Alarm Home Base Pro Station battery compartment using the original 5E42E9 form factor. No wiring changes or adapter plates are required, so the existing mounting points and latch mechanism stay unchanged. Built-in protection circuitry guards the station’s charging logic against fault conditions, freeing the installer from external safety hardware.

Ideal for owners needing a direct 5E42E9 substitute

This unit suits technicians or homeowners replacing a depleted pack in a Ring Alarm Home Base Pro Station where the part number matches exactly. Buyers whose security hub uses a different battery model, voltage or connector layout should verify compatibility before ordering. The single-pack format also means multi-station deployments require separate units for each base.

How it compares

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

Price $36.99
Pricier than about 89% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameRing
Product typeBatteries
Power
Battery typeLithium
Battery capacity3,000 mAh
Battery voltage rating7.4
In the box
Battery pack size1-pack

Questions about this item

How long will the 3400 mAh capacity keep the Alarm Home Base Pro Station running during a prolonged power outage?

The 3400 mAh lithium pack delivers 25.16 Wh at 7.4 V, matching the original 5E42E9 specification for extended backup time.

Does the battery generate noticeable heat or noise when the base station operates continuously on backup power?

The lithium cell includes overcharge, over-discharge, over-voltage and short-circuit protection, and the 128.0 g pack has no moving parts, so it runs silently with minimal heat.

Which specific Ring base station model and part number must I already own for this 5E42E9 replacement to fit and function?

It is designed for the Ring Alarm Home Base Pro Station using the original 5E42E9 battery part number.

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