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Black rectangular lithium-ion laptop battery, 51Wh 7.4V

Beisite

Beisite G5M10 51Wh 7.4V laptop battery

SKU CH-2THT-745XA

A 51Wh 7.4V lithium-ion replacement battery compatible with Latitude 3160, E5470, E5450, E5550 and E5570 series laptops

  • Battery typeLithium-Ion
  • Battery voltage rating7.4 V
  • Battery capacity51 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Latitude 3160 E5470 E5450 E5550 E5570 Series
  • 51Wh capacity supports extended work sessions
  • 4V lithium-ion chemistry delivers stable power
  • Replaces OEM part numbers G5M10 R9XM9 8V5GX R0TMP 21CP6/56/77-2
  • Fits Latitude 3160 E5470 E5450 E5550 E5570 series
  • Brand new unit with 12 month warranty coverage

Direct replacement for Dell Latitude series

The Beisite G5M10 is a 51Wh 7.4V lithium-ion battery built to replace part numbers G5M10, R9XM9, 8V5GX, R0TMP and 21CP6/56/77-2. It fits Latitude models including the 3150, 3160, 5250, 5270, 5450, 5470 and 5550 series. Buyers who need a higher capacity pack or a different voltage cannot use this unit.

Lithium-ion chemistry sets the practical limits

The 7.4V 51Wh rating defines the energy available per charge cycle; runtime scales with the laptop's power draw and cannot be extended by the battery itself. Lithium-ion cells degrade with time and heat, so capacity will diminish over months of daily use. The pack does not support fast-charge protocols beyond the laptop's standard controller.

Black plastic enclosure

The housing matches the OEM form factor and uses the same latch positions, so installation requires no tools or case modification. Connectors align with the system board exactly as the original unit did. The 12-month warranty period reflects the supplier's confidence in cell consistency and build quality.

How it compares

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

Price $33.99
Pricier than about 60% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameG5M10
Model nameG5M10
Part number21CP6/56/77-2
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating7.4 V
Battery capacity51 Wh
Compatibility
Compatible withFor Latitude 3160 E5470 E5450 E5550 E5570 Series

Questions about this item

Which part number confirms this 51Wh 7.4V battery fits my Dell Latitude?

Match the original battery label to G5M10, R9XM9, 8V5GX, R0TMP or 21CP6/56/77-2; if it reads 6MT4T this unit will not fit.

What does the 51Wh rating deliver in daily use on a Latitude E5470?

The 51Wh capacity at 7.4V typically provides several hours of mixed office work on compatible Latitude models before recharge.

What connector standard does the G5M10 use and what does it limit?

The battery uses Dell's proprietary multi-pin connector for Latitude 3150, 3160, 5250, 5270, 5450, 5470, 5550 and 5570 series; it only works with that interface.

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