We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-ion laptop battery, 97Wh 11.1V

Beisite

Beisite 97Wh 11.1V laptop battery FJJ4W 31CR18/65-3 for Precision M4600 M4700 M4800 M6600 M6700 M6800

SKU CH-7JEN-FAPYM

97Wh 11.1V lithium-ion replacement battery compatible with Precision M4600, M4700, M4800, M6600, M6700 and M6800 models

  • Battery typeLithium-Ion
  • Battery voltage rating11.1 V
  • Battery capacity97 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Precision M4600 M4700 M4800 M6600 M6700 Series
  • 97Wh capacity extends work sessions away from power
  • 1V lithium-ion chemistry matches original Dell specifications
  • Replaces ten OEM part numbers including FV993 and 31CR18/65-3
  • Fits Precision M4600 M4700 M4800 M6600 M6700 M6800 models
  • Brand-new condition with twelve-month manufacturer warranty

97Wh 11.1V replacement for Dell Precision

This lithium-ion battery replaces the original Dell FJJ4W, FV993 and 31CR18/65-3 packs. It is built for Precision M4600, M4700, M4800, M6600, M6700 and M6800 mobile workstations. The 97 watt-hour capacity restores full mobile runtime for engineers and field technicians who rely on these larger chassis. Buyers needing a battery for smaller ultraportables or newer Dell models cannot use this pack.

Sustained discharge at 11.1 volts

The 97Wh rating delivers consistent energy across long work sessions rather than only a brief peak. Lithium-ion chemistry maintains stable voltage while powering high-performance CPUs and discrete graphics under load. Cells are balanced to reduce capacity fade over repeated cycles. Users who require hot-swap capability or an external charging cradle will not find those features here.

Black hard-shell casing with OEM connector

The rigid black enclosure matches the factory form factor and locks into the Precision battery bay without adapters. Gold-plated contacts align with the motherboard connector for reliable mating through daily insertions. No tools are required for installation beyond the laptop's own release latch. The pack ships alone; mounting screws, drive caddies or AC adapters are not included.

How it compares

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

Price $41.99
Pricier than about 73% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameFJJ4 W
Model nameFJJ4 W
Part number31CR18/65-3
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.1 V
Battery capacity97 Wh
Compatibility
Compatible withFor Precision M4600 M4700 M4800 M6600 M6700 Series

Questions about this item

Will the 97 Wh, 11.1 V lithium-ion pack run cool and quiet during all-day use in a Precision M6700?

The battery is a passive component with no moving parts, so it adds no fan noise and generates only normal warmth during charging or heavy discharge.

What existing hardware must I already have for this battery to function?

You need a Dell Precision M4600, M4700, M4800, M6600, M6700 or M6800 with a compatible battery bay.

Can I keep using my original Dell AC adapter with this 97 Wh replacement?

Yes, the pack charges through the laptop’s standard DC-in jack, so the original Dell power brick continues to work normally.

More in Laptop Chargers & Batteries

Similar items