Rechargeable Laptop Battery Instructions

Thank you for your purchase of a quality 2-Power laptop battery. Our aim is total customer satisfaction and we encourage you to read these instructions so you gain the maximum life from your new battery.

  1. Your new battery is shipped in a partially discharged state and like every Lithium-Ion battery needs to be run in. To do this simply place the battery pack into your laptop and repeat a full charge and discharge cycle 3-4 times. We recommend a minimum 12 hour charge regrdless of whether or not the laptop shows a 100% charge. This is to ensure that all the cells are charged equally. When you first place the battery pack into your laptop it is normal for the fuel gauge on your laptop to be incorrect. This is because the fuel gauge is still calibrated to the condition of your old battery. After you have completed the full charge and discharge cycles 3-4 times the fuel gauge will become accurate again. Please be aware that until your laptop is calibrated to the condition of your new battery, the laptop may cut off prematurely without warning so it is suggested that you frequently save your data. It is also not uncommon for a new battery to not charge to 100% straight away. This does not mean the battery is faulty, simply turn off the laptop then remove and reinsert the battery and connect the AC adapter. The battery should continue to charge.

    NB. Never force your battery completely out of charge by repeatedly turning your laptop back on after it has shut down due to low battery power. To do so will mean the safety circuit inside your battery pack may loose power and a safety switch may open permanently disabling your battery.
  2. Once run in, avoid frequent full discharges because this puts additional strain on your battery. Several partial discharges with frequent recharges are better for lithium-ion batteries then one deep one. Recharging a partially charged lithium-ion battery does not cause harm because there is no memory effect. Short battery life in a laptop is mainly caused by heat rather than charge/discharge patterns.
  3. Your laptops fuel gauge should be calibrated by applying a deliberate full discharge and recharge once every 30 charges. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the laptop prematurely.
  4. Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep your battery at a 40% charge level and store for no longer than 30 days without using it. Failure to follow this instruction may result in your battery not being able to be recharged.
  5. Consider removing the battery from your laptop when running on fixed power as this reduces the batteries exposure to heat from the laptop. The use of an older battery to act as a backup against power failure is suggested.
  6. If you have a spare lithium-ion battery, use one to the fullest but make sure you use the spare at least once every 30 days. For best results, store the spare battery at 40% state of charge and in a cool place. Please be aware that the laptops fuel gauge will still be calibrated to your main battery, not your spare battery so unless you run in the spare battery (see point 1) the laptop may cut off prematurely.


Lithium-ion batteries can rupture, ignite or explode when exposed to high temperatures (60°C), or direct sunlight. They should not be stored in a car during hot weather.

Short circuiting a lithium-ion battery can cause it to overheat, ignite or explode.

Never open or puncture a litium-ion battery's casing. Litium-ion batteries contain safety devices that protect the cells inside from abuse. If damaged, these can also cause the battery to overheat, ignite or explode.

Never expose the battery to water or liquid.

Never dispose of in fire or water.

Never dispose of the battery in your normal trash. Please follow your lowcal laws as to the proper disposal. More information on battery disposal in the UK can be found here.