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Rectangular lithium battery, matte finish, thin profile

Estry

Estry U720 standard battery 1200mAh 3.7V 4.44Wh

SKU CH-S4GF-FGJNM MPN U720

Replacement lithium battery for Telstra U720, U600 and X920 handsets, 1200mAh at 3.7V with overcharge and short-circuit protection

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity1,200 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • 1200mAh capacity powers Telstra U720, U600 and X920 handsets
  • 7V lithium cell matches original Li3711T42P3h654246 and Li3715T42P3H654251 part numbers
  • 44Wh energy rating in a 64.85 x 42.15 x 4.7mm form factor
  • 0g weight with overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards

Replacement Battery for Telstra Handsets

The Estry U720 is a lithium-ion replacement cell built to match the original specifications for Telstra U720, U600 and X920 devices. It delivers a 1200mAh capacity at 3.7V, yielding 4.44Wh of energy. The pack includes overcharge, over-discharge, over-voltage and short-circuit protection circuits.

Suitable for Owners of Listed Telstra Models

This battery fits users who need a direct replacement for part numbers Li3711T42P3h654246 or Li3715T42P3H654251 in the three compatible handsets. It is not intended for owners of other phone brands, for devices that require a different voltage or capacity, or for projects needing a bare cell without a protection board.

Key Specification Is the 3.7V 1200mAh Rating

The 3.7V nominal voltage combined with 1200mAh capacity determines whether this cell matches the power budget and runtime the handset expects. If the original battery shows the same voltage and capacity, the Estry U720 will slot in and operate within the designed safety margins.

How it compares

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

Price $8.99
Cheaper than about 80% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameTelstra
Product typeBatteries
Power
Battery typeLithium
Battery capacity1,200 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

Will this 3.7V 1200mAh battery fit my Telstra U600 handset?

The pack is listed as compatible with the U600, U720 and X920 models and matches part numbers Li3711T42P3h654246 and Li3715T42P3H654251.

How can I verify the replacement cell is working correctly after I install it?

The phone should power on normally, show a full charge indicator and deliver the rated 4.44Wh capacity during use.

Does the package include a charger or tools, or do I need to buy them separately?

The listing describes a single 50.0g battery measuring 64.85 x 42.15 x 4.7mm; no charger or tools are mentioned.

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