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Four rectangular lithium-ion camera batteries in a pack

Kastar

Kastar FNP120 4-pack Li-ion camera battery 2300mAh 8.51Wh 3.7V

SKU CH-2JDP-NCNEX

Four-pack of 3.7 V 2300 mAh Li-ion cells replaces Brother LD0665001, AP-1908, DS820W and DS920DW scanner batteries with UL1642 and CE safety circuits

  • Total capacity8.51 Wh
  • Pack contents4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key featuresHigh Capacity and Manufacture Price.
  • High capacity 2300 mAh keeps scanners running longer
  • 51 Wh lithium-ion chemistry delivers reliable energy
  • UL 1642 and CE certified cells ensure safe operation
  • Built-in protection guards against over-charge and over-heat
  • Four-pack replaces Brother LD0665001 MDS2E AP-1908 DS820W DS920DW batteries

Compatible Scanner Models

This four-pack of Kastar FNP120 lithium-ion batteries replaces the Brother LD0665001 and AP-1908 cells used in the DS820W and DS920DW document scanners. Each unit delivers 3.7 V and 2300 mAh for direct drop-in operation.

Capacity and Headroom

At 8.51 Wh per cell the pack supplies enough energy for extended scanning sessions without frequent swaps. Runtime scales with scan density and duplex use; very high-volume days will still require a recharge or a spare set.

Included Protection Circuit

Built-in safeguards stop over-charge, over-discharge, over-voltage, over-current and over-heating events before they damage the scanner or the cells. The circuitry also helps preserve cycle life across repeated charges.

How it compares

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

Price $38.99
Pricier than about 83% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameFNP120
Part numberBA-4B-FNP120-S
Total capacity8.51 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Will the 3.7 V FNP120 cells work in my older Brother DS820W scanner without any adapter?

Yes, the 3.7 V 2300 mAh cells are direct replacements for the Brother LD0665001 pack used in the DS820W, so they fit and power the scanner without an adapter.

How can I confirm each 8.51 Wh pack is charging and holding capacity correctly after first use?

Insert a pack into the DS820W or DS920DW; the scanner’s battery gauge should show a full charge and deliver noticeably longer run-time per cycle thanks to the 2300 mAh rating.

What exactly ships in the 4-pack box and do I need to buy a separate charger?

The box contains four Kastar FNP120 Li-ion cells (part BA-4B-FNP120-S); they are charged inside the Brother DS820W or DS920DW scanner, so no external charger is required.

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