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Flat rectangular lithium battery pack, light grey plastic finish, compact 56.0 by 48.92mm profile

Estry

Estry MBP50 standard battery 1800mAh 3.7V BL253

SKU CH-7H7S-71GWZ MPN MBP50

Replacement lithium battery for Motorola baby monitors MBP50, MBP855, MBP855CONNECTPU, MBP50-G2 and MBP50PU, 1800 mAh at 3.7 V

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity1,800 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • Compatible with MBP50, MBP855 and MBP50-G2 monitors
  • 1800mAh lithium cell powers baby units longer
  • 7V 6.29Wh matches original BL253 specifications
  • CE, RoHS and UN38.3 certified for safe use
  • Slim 56.0 x 48.92 x 5.28mm design fits securely

Compatible replacement battery 1800mAh 3.7V

This Estry replacement battery delivers 1800mAh at 3.7V for Motorola MBP50, MBP855, MBP855CONNECTPU, MBP50-G2 and MBP50PU monitors. It matches the original BL253 specifications and includes overcharge, over-discharge, over-voltage and short-circuit protection. The single lithium cell measures 56.0 x 48.92 x 5.28mm and weighs 58.4g.

Suits owners of listed Motorola monitors needing

Buyers with other baby monitor brands or different Motorola part numbers should look elsewhere. The pack contains one battery only, so users requiring a multi-cell pack or higher capacity than 1800mAh will need a different solution.

Deciding spec: 1800mAh capacity at 3.7V

This capacity and voltage combination determines whether the cell fits the monitor's power budget and runtime expectations. Verify the original battery shows 1800mAh and 3.7V before ordering.

How it compares

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

Price $12.99
Pricier than about 60% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameMotoroIa
Product typeBatteries
Power
Battery typeLithium
Battery capacity1,800 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

When will the BL253 lithium cell need replacement?

The 1800mAh 3.7V pack is rated for hundreds of charge cycles; replace it once run time drops noticeably below the original 6.29Wh capacity.

What limits the MBP50 battery during continuous monitor use?

The 1700mAh usable capacity and built-in over-voltage, over-discharge and short-circuit protection set the practical runtime ceiling.

How much heat or noise does the Estry MBP50 battery produce all day?

It runs silently with negligible heat; the protection circuit only engages if voltage or temperature exceeds safe thresholds.

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