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Rectangular black lithium-ion laptop battery pack

myVolts

myVolts 51KD7 Laptop Battery 11.4V 42Wh 3500mAh 3-Cell for Dell Chromebook 11 3100 3180 3189 5190 3181 2-in-1

SKU CH-2Y3Y-EB0X8

Replacement Li-ion battery delivering 11.4 V and 42 Wh for compatible Dell Chromebook models

  • Li-ion chemistry delivers 11.4 V at 42 Wh for reliable power
  • 3500 mAh capacity supports extended sessions on compatible Chromebooks
  • Three-cell design keeps the pack lightweight and easy to install
  • Replaces Dell part numbers 51KD7, Y07HK, FY8XM and 0FY8XM directly
  • Rated for up to 500 recharge cycles over the battery life

Direct replacement battery

The myVolts 51KD7 is a new 11.4V lithium-ion battery built for Dell Chromebook 11 models 3100 3180 3189 5190 3181 and 2-in-1 variants. It delivers 42Wh capacity across three cells rated at 3500mAh. Buyers who need a different voltage or connector layout cannot use this part.

Long cable connector required

The critical specification is the long battery connecting cable used on certain 3100 and 3400 units. Dell shipped these systems with two distinct battery types and the cables are not interchangeable. Verify the original battery model number before ordering to avoid a mismatch.

Fits existing chassis and charging circuit

The pack slides into the original battery bay and works with the stock charger without modification. It supports up to 500 recharge cycles over its service life. Builders looking for higher capacity or a different cell count will need another solution.

How it compares

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

Price $42.99
Pricier than about 74% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How long can the 42 Wh capacity run a Dell Chromebook 11 3100 on a single charge?

Run time depends on the workload; the 42 Wh rating means the pack can deliver roughly 42 watts for one hour, so lighter tasks will last longer while heavy use drains it faster.

What does the 11.4 V rating mean for compatibility with my Chromebook 3181?

The 11.4 V output matches the original specification for the listed Dell models, so the battery will power the 3181 correctly without voltage mismatch.

Will this 3-cell pack fit the long connecting cable used in the Dell Chromebook 5190 2-in-1?

Yes, this listing is specifically for the battery type that requires the long connecting cable found in the 5190 and related 3100 series units.

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