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Small rectangular Ni-MH battery pack with two terminals, green label showing 3.6V 600mAh

Estry

Estry CS5211 3.6V 600mAh standard battery

SKU CH-MV15-T6HMB MPN CS5211

Ni-MH 3.6V 600mAh replacement battery for VTech cordless phones, 2.16Wh with overcharge and short-circuit protection

  • Battery pack size1 Year
  • Details3.6
  • Exact-fit replacement for VTech cordless phones
  • 6 V 600 mAh Ni-MH matches original specs
  • Built-in protection against overcharge and short circuit
  • Certified to ISO 9001 RoHS CE UN38.3 MSDS
  • Compact 42.45 x 29.77 x 14.37 mm design

Exact-fit replacement for VTech handsets

The Estry CS5211 is a nickel-metal-hydride pack built to the original 3.6V 600mAh specification. It matches the listed compatible models and part numbers including BT27333 and 89-1332-00-00. Buyers who need a different voltage or connector layout cannot use this pack.

Steady output over long talk time

The 2.16Wh energy rating supports extended cordless-phone conversations without the voltage sag seen in short-burst tests. Integrated protection circuits guard against over-charge, over-discharge, over-voltage and short-circuit events during daily charge cycles. Users who demand rapid high-current pulses for other devices will find the chemistry unsuited.

Limited to 3.6V Ni-MH platform

The pack operates only within the 3.6V nominal range and the 42.45 x 29.77 x 14.37mm form factor. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications for safety compliance. Builders who require lithium-ion energy density or a different physical footprint must choose another solution.

How it compares

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

Price $11.99
Pricier than about 55% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameNi-MH
Model name600 mAh
In the box
Battery pack size1 Year

Questions about this item

How much heat or power does the 3.6 V 600 mAh Ni-MH pack draw when the handset is on standby all day?

The 2.16 Wh cell is designed for low self-discharge standby use; typical cordless phones draw only milliamps in idle mode, so heat and power draw remain minimal.

What must I already own for this CS5211 replacement to work?

You need a VTech handset or base that accepts the original BT17233, BT27333, BT263345 or 89-1332-00-00 battery — the pack fits those exact models.

Will the 42.45 × 29.77 × 14.37 mm pack sit correctly in my older CS5121-2 or CS5122-3 handset?

Yes — the dimensions and 3.6 V 600 mAh rating match the original BT163345 and BT27233 cells used in those models, so the door closes normally.

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