Replacement for Compaq Presario R4000 Battery UK

14.80V, 4400mAh compaq Presario R4000 replacement battery

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  • 14.80V, 4400mAh compaq Presario R4000 replacement battery
  • 14.80 V, 6600 mAh compaq Presario R4000 replacement battery

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  1. Chemistry: Li-Ion
  2. Capacity: 4400mAh/ 6600 mAh
  3. Volts: 14.80V
  4. Color: Black/ Black

Compaq Presario R4000 battery

Quick OverviewPresario R4000 Lithium Ion Replacement Battery for the Compaq Presario R4000. This high quality Compaq Presario R4000 replacement battery is designed to replace Compaq OEM battery: Presario R4000. Our batteries are known for their high quality and performance.

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How to prolong your Compaq Presario R4000 laptop battery?

  1. Avoid frequent full discharges because this puts additional strain on the your Presario R4000 battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short Compaq Presario R4000 battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
  2. Compaq Presario R4000 Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.
  3. Keep the lithium-ion Compaq Presario R4000 battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.
  4. Consider removing the Presario R4000 battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)
  5. For best results, store the Compaq Presario R4000 battery at 40% state-of-charge.

Brand new, cheap Compaq Presario R4000 battery Compatible Part Numbers

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