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Rectangular black lithium-polymer battery 24.42 by 22.22 by 4.00 mm

Cameron & Co

Cameron & Co DS-CS-PEB112SH Li-Polymer 3.7V 130mAh wearable technology

SKU CH-YZ5Z-CP203

Replacement Li-Polymer battery for Pebble 401S, E-Paper, Steel Watch 2 and P121112 smartwatches, 3.7V 130mAh capacity

  • TypeBattery
  • Li-Polymer chemistry provides stable 3.7 V output
  • 130 mAh capacity delivers reliable runtime for daily wear
  • 42 x 22.22 x 4.00 mm form fits Pebble 401S and Steel Watch 2
  • Black finish matches original device aesthetics
  • 100 % OEM compatible ensures direct replacement without modification

Direct replacement for Pebble 401S and Steel Watch 2

This Cameron Sino Li-Polymer cell matches the original P121112 part for the Pebble 401S E-Paper and Pebble Steel Watch 2 smartwatches. It arrives new and 100% OEM compatible, so the watch recognises it immediately without any firmware workarounds. The black pack fits the factory compartment exactly.

130 mAh capacity with 0.48 Wh energy rating

At 3.7 V the cell stores 0.13 Ah, delivering enough headroom for typical daily notifications and activity tracking on the E-Paper display. Heavy always-on use or constant Bluetooth sync will drain it faster, so expect shorter runtime under those loads. The 0.48 Wh rating confirms the energy budget the original firmware manages.

24.42 × 22.22 × 4.00 mm form factor decides fit

The pack measures 24.42 mm by 22.22 mm by 4.00 mm, matching the tight internal cavity of the Pebble 401S and Steel Watch 2. Any thicker or wider cell will not seat, and the connector alignment will fail. Buyers with other Pebble models or third-party cases should verify dimensions before ordering.

Highlights

  • Li-Polymer chemistry provides stable 3.7 V output
  • 130 mAh capacity delivers reliable runtime for daily wear
  • 42 x 22.22 x 4.00 mm form fits Pebble 401S and Steel Watch 2
  • Black finish matches original device aesthetics
  • 100 % OEM compatible ensures direct replacement without modification

Specifications

BrandCameron Sino
ModelDS-CS-PEB112SH
TypeBattery

Questions about this item

Will this 3.7 V 130 mAh Li-Polymer cell fit my original Pebble Steel Watch 2 P121112 without modification?

Yes, it is built to the exact 24.42 x 22.22 x 4.00 mm dimensions of the P121112 pack, so it slots into the watch cavity with no trimming or adapters.

How can I confirm the battery is delivering its rated .48 Wh after I install it?

Charge the watch fully, then note the runtime under your normal usage; a healthy cell should sustain the watch for roughly the same span the original did when new.

Does the package include the tiny screwdrivers or adhesive strips needed to open the Pebble 401S case?

No, the box contains only the single black DS-CS-PEB112SH battery; opening tools and resealing adhesive must be sourced separately.

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