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Flat rectangular lithium cell phone battery with smooth finish and gold contacts visible

Estry

Estry cell phone battery 1200mAh 3.8V for NUU F4L S2801L NUBS2801

SKU CH-1YVE-8R8B3

A 1200mAh 3.8V lithium replacement battery compatible with the NUU Mobile F4L 4G LTE S2801L, measuring 64.9 x 36.8 x 11.7mm and weighing 48.0g

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity1,200 mAh
  • Battery voltage rating3.8
  • Product typeBatteries
  • Replacement fits NUU F4L S2801L exactly
  • 1200mAh capacity restores original runtime
  • 8V 4.56Wh lithium cell matches factory spec
  • 9×36.8×11.7mm dimensions ensure proper fit
  • ISO9001 RoHS CE UN38.3 MSDS certified safety

Replacement Battery for NUU F4L

This 3.8V lithium cell delivers 1200mAh capacity and 4.56Wh energy rating in a single pack. It matches the original NUBS2801 specifications for the NUU Mobile F4L 4G LTE S2801L handset. Overcharge, over-discharge, over-voltage and short-circuit protection are built in for safer operation.

For owners of the exact NUU model

The battery fits only the Mobile F4L 4G LTE S2801L using part number NUBS2801. Buyers with a different NUU handset or another brand should look elsewhere because the connector and dimensions will not match. Confirm the model and part number before ordering to avoid incompatibility.

Steady discharge with certified safety

The cell holds ISO9001, RoHS, CE, UN38.3 and MSDS certifications, confirming consistent quality and transport safety. Protection circuits guard against voltage extremes during prolonged use. Physical size is 64.9 x 36.8 x 11.7mm and weight is 48.0g for a direct fit inside the original compartment.

How it compares

Measured against everything we stock in Replacement Phone Batteries, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 90% of the 868 comparable items (median $14.99).

Specifications

Product
Brand nameNUU
Product typeBatteries
Power
Battery typeLithium
Battery capacity1,200 mAh
Battery voltage rating3.8
In the box
Battery pack size1-pack

Questions about this item

Does this battery fit the NUU F4L S2801L without any extra tools or adapters?

It is a direct replacement for the NUBS2801 cell used in the NUU F4L S2801L and matches the original 64.9 x 36.8 x 11.7 mm dimensions, so no extra parts are needed.

Will the 3.8 V 1200 mAh capacity work with the phone's original charging circuit and battery gauge?

Yes, the voltage and capacity match the factory specifications of 3.8 V and 1200 mAh, so the existing charging logic and fuel gauge will operate normally.

How can I confirm the battery is functioning correctly after I install it?

The phone should power on, show a charge percentage that increases when plugged in, and run for a typical day on a single charge; the built-in overcharge, over-discharge, over-voltage and short-circuit protection will engage automatically if limits are exceeded.

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