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Flat black rectangular lithium-polymer keyboard battery 290.34 by 118.00 by 4.60 mm

Cameron & Co

Cameron & Co DS-CS-MCR135SL 11.36V 4.8Ah Battery

SKU CH-0D78-K7938

Replacement keyboard battery for Microsoft Surface Book 3 13.5, 11.36 V 4.8 Ah Li-Polymer, 54.53 Wh capacity

  • Replacement keyboard battery for Microsoft Surface Book 3 13.5
  • Li-Polymer chemistry delivers 4.8 Ah capacity at 11.36 V
  • 53 Wh energy rating supports extended typing sessions
  • Slim 4.60 mm profile fits the original keyboard chassis
  • 100 % OEM-compatible with part number G3HTA065H

Replacement keyboard battery

The Cameron & Co DS-CS-MCR135SL is a lithium-polymer battery built for the Microsoft Surface Book 3 13.5 keyboard base. It replaces part number G3HTA065H and restores power to the keyboard section only, not the tablet portion. The unit ships new and black, matching the original form factor. It targets owners whose keyboard battery no longer holds a useful charge.

Installation and fit

The pack measures 290.34 x 118.00 x 4.60 mm and slots into the existing keyboard cavity without adapters. It uses the stock connector so the system recognises it immediately and no extra cabling is required. Because it draws power only from the keyboard rail, it frees the tablet battery to run the display and processor alone. Builders must open the keyboard base to swap the cell.

Capacity and runtime

Rated at 11.36 V and 4.8 Ah, the cell stores 54.53 Wh of energy. That reserve supports typical typing and trackpad sessions through a full workday before the keyboard needs recharging. Heavy backlight use or sustained USB accessory draw will deplete it sooner. The battery cannot power the tablet section, so the detachable screen still relies on its own internal pack.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $54.99
Pricier than about 83% of the 8,808 comparable items (median $16.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-MCR135SL

Questions about this item

How long does the 4.8 Ah capacity last under continuous keyboard use?

The 4.8 Ah lithium-polymer cell stores 54.53 Wh at 11.36 V, which typically powers the Surface Book 3 13.5 keyboard through a full workday of typing and trackpad activity.

Does the battery generate noticeable heat or fan noise during all-day operation?

The slim 4.60 mm lithium-polymer pack has no moving parts and runs cool; it produces no fan noise and only slight warmth even after hours of sustained use.

Which Surface Book model must I already own for this keyboard battery to fit?

This replacement is built for the Microsoft Surface Book 3 13.5 keyboard base and matches part number G3HTA065H; it will not fit the tablet portion or other Surface models.

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