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Cylindrical Ni-MH battery, green label, 54.1 by 14.2 mm

Estry

Estry ER1420 1.2V 2000mAh standard battery

SKU CH-5Y5N-BJA8T MPN ER1420

Ni-MH replacement cell delivers 1.2 V and 2000 mAh for compatible ER-series devices

  • Battery pack size1 Year
  • Details1.2
  • Exact-fit replacement for ER1420 and compatible models
  • 2000 mAh capacity delivers 2.4 Wh of energy
  • Built-in protection against overcharge, over-discharge and short circuit
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS
  • Compact 54.1 x 14.2 x 14.2 mm form factor weighs 78.0 g

Replacement Ni-MH cell for listed models

The Estry ER1420 is a 1.2V 2000mAh nickel-metal hydride battery built to match the original specifications for a long list of compatible model numbers. It suits users who need a direct drop-in replacement for devices that reference the ER1420, ER1410, ER148, ER146, ER1512, ER1611, ES2058, ER1510, ES2044 or ER1421 designations.

Compact cylindrical form with safety protections

Measuring 54.1 x 14.2 x 14.2 mm and weighing 78.0 g, the cell fits the same battery compartment as the original pack. Built-in overcharge, over-discharge, over-voltage and short-circuit protection helps preserve cycle life and reduces the risk of damage during daily charging and use.

Ni-MH chemistry limits and certification coverage

The 2.4 Wh energy rating reflects the inherent capacity ceiling of 1.2 V Ni-MH cells, so runtime will be lower than higher-voltage or lithium-based alternatives. The pack carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications, confirming compliance with quality, substance and transport regulations.

How it compares

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

Price $13.99
Pricier than about 63% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameNi-MH
Model name2,000 mAh
In the box
Battery pack size1 Year

Questions about this item

What voltage does the ER1420 1.2V 2000mAh battery deliver and what energy capacity does that provide?

The cell provides 1.2V nominal voltage with a 2000mAh rating, giving 2.4Wh of stored energy for compatible devices.

What are the exact dimensions and weight of this battery so I can verify it fits my device?

It measures 54.1 x 14.2 x 14.2mm and weighs 78.0g, matching the original ER1420 form factor.

How do I install the ER1420 replacement battery and what common mistake should I avoid?

Confirm your model appears in the compatible list such as ER1420 or part numbers like WER160L2504, then insert observing correct polarity; the frequent error is skipping this verification step.

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