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Rectangular lithium battery pack with smooth grey finish, 64.32 by 36.8 by 15.56 mm, 65.6 g

Estry

Estry 1800mAh 3.7V Lithium Battery for DuraFon SN902 SP922 RB-SP922-L

SKU CH-RSHT-G573M

Replacement lithium battery rated 1800mAh at 3.7V for DuraFon SN902 and SP922 handsets

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity1,800 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • 1800mAh capacity extends talk time on compatible handsets
  • 7V lithium chemistry matches original voltage requirements
  • Fits DuraFon SN902 SP922 Pro Durawalkie models
  • Built-in protection guards against overcharge and short circuit
  • CE RoHS ISO9001 UN38.3 certified for safety compliance

Replacement Battery for DuraFon Handsets

This Estry lithium cell is a direct replacement for the original RB-SP922-L pack used in DuraFon 1x SN902 and DuraFon 4x SP-922 Pro handsets. It delivers 3.7V and 1800mAh capacity in a single pack format. The unit is certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards.

Capacity and Voltage Match

The battery provides 1800mAh at 3.7V, matching the original specifications for 6.66Wh of energy. Physical dimensions are 64.32 x 36.8 x 15.56mm with a weight of 65.6g. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuit.

For DuraFon Owners Needing a Drop-In Cell

This pack suits owners of the listed DuraFon models who need a new power cell that fits the existing compartment and connector. Buyers with different handset models or those requiring a higher capacity than 1800mAh should verify compatibility before purchasing.

How it compares

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

Price $14.99
Pricier than about 67% of the 10,440 comparable items (median $10.99).

Specifications

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

Questions about this item

How long will the 1800mAh capacity actually run a DuraFon handset?

The 1800mAh lithium cell delivers 6.66Wh at 3.7V, matching the original RB-SP922-L specification so talk and standby times are the same as the factory battery.

Does the battery use a standard connector that fits the SN902 and SP922 models?

Yes, it is built to the exact RB-SP922-L form factor and plugs directly into the DuraFon 1x SN902, Durawalkie and DuraFon 4x SP-922 Pro handsets.

Will the 64.32 x 36.8 x 15.56mm pack fit inside the handset battery compartment?

Those dimensions match the OEM RB-SP922-L size, so the pack seats flush in the SN902, SP922, SP9228 and SN-902H compartments without modification.

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