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Rectangular black lithium polymer laptop battery pack

NShi

NShi L13M4P21 laptop battery 7.4V 34Wh 4600mAh

SKU CH-RQE7-2BC8F MPN L13M4P21

Replacement lithium-polymer battery delivering 7.4 V and 34 Wh for IdeaPad Yoga 2 11 series laptops

  • Battery TypeLithium Polymer
  • 4 V 34 Wh capacity powers compatible Yoga 2 11 models
  • 4600 mAh lithium-polymer cell delivers extended runtime per charge
  • Four-cell design fits original L13M4P21 and L13L4P21 part numbers
  • Brand-new condition ensures full performance from first use
  • Replaces batteries in IdeaPad Yoga 2 11 11.6 inch series

Direct replacement for Yoga 2 11

This lithium-polymer battery replaces part numbers L13M4P21 and L13L4P21 in the IdeaPad Yoga 2 11 series. It delivers 7.4 volts, 34 watt-hours and 4600 milliampere-hours across four cells. Owners of the 11.6-inch convertible can restore original run-time without modification.

Steady output with low heat

The polymer chemistry maintains stable voltage during typical workloads while generating minimal warmth. Internal resistance stays low so the pack does not throttle the system or force the cooling fan to spin faster. Normal charging cycles complete without audible noise from the battery itself.

Ready to install with warranty backing

The pack ships fully charged and calibrated, so the laptop recognises correct capacity on first boot. A twelve-month warranty and thirty-day return window cover early-life defects. Round-the-clock email support assists with fitment questions for the listed Yoga models.

Highlights

  • 4 V 34 Wh capacity powers compatible Yoga 2 11 models
  • 4600 mAh lithium-polymer cell delivers extended runtime per charge
  • Four-cell design fits original L13M4P21 and L13L4P21 part numbers
  • Brand-new condition ensures full performance from first use
  • Replaces batteries in IdeaPad Yoga 2 11 11.6 inch series

Specifications

Battery TypeLithium Polymer

Questions about this item

How do I install the L13M4P21 battery in my IdeaPad Yoga 2 11 and what step is often missed?

Power off the laptop, remove the bottom case screws, disconnect the old battery cable, connect the new L13M4P21 cable firmly, then reassemble; the step often missed is reconnecting the cable before securing the case.

What maintenance or replacement will the L13M4P21 need over time?

The lithium-polymer pack has no user-serviceable parts; replace the battery when run-time drops below your needs, typically after several hundred charge cycles.

What limit appears first during sustained use of the 7.4V 34Wh pack?

The 34Wh capacity determines how long the laptop runs before the battery must be recharged; thermal limits of the laptop chassis may also throttle performance.

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