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Rectangular black lithium-ion laptop battery pack

Total Micro Technologies

Total Micro L20C4P71-TM 4-cell standard battery 57 Wh 3690 mAh 15.44 V

SKU CH-5KVK-Q3RYJ

A 4-cell lithium-ion notebook battery delivering 57 Wh at 15.44 V for extended runtime

  • Battery typeLithium-Ion
  • Longer runtime from 57 Wh capacity
  • Reliable power delivery at 15.44 V
  • Extended use with 3690 mAh rating
  • Balanced design using 4-cell layout
  • Premium cells built to meet OEM specifications

4-cell 57 Wh replacement battery

This lithium-ion pack is a direct replacement for compatible notebooks and delivers 57 watt-hours at 15.44 volts. It suits owners who need a new standard battery to restore original run time.

57 Wh capacity at 15.44 V

The single figure that decides fit is the 57 watt-hour rating combined with the 15.44 volt output; the pack must match the original unit's voltage and capacity exactly or the notebook will not recognise it.

Simple drop-in install

Installation requires only releasing the old pack and sliding this one into the same bay until the latch clicks. The common mistake is forcing the connector before the alignment tabs are fully seated, which can bend pins.

How it compares

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

Price $34.99
Pricier than about 88% of the 10,440 comparable items (median $10.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

How long will 57 Wh last on a typical laptop?

At a 20 W draw the 57 Wh pack gives about 2.8 hours; actual runtime varies with screen brightness and workload.

What does the 15.44 V rating mean for compatibility?

The 15.44 V output must match the original battery voltage; a different voltage can prevent charging or damage the notebook.

Will this 4-cell pack fit my laptop's battery bay?

The 4-cell form factor matches many OEM bays, but you must verify the exact dimensions and connector layout against your model.

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