This is a brand new Acer Aspire UM09F36 battery for the Aspire Timeline 1420P models.

This Acer UM09F36 battery contains the very best Li-ion cells on the market from Samsung. An important specification to look for with rechargeable batteries is the mAh (mili amp hour) rating or Whr (Watt Hour). This battery is rated at 5200 mAh or 58 Whr. This is the highest rating available for a 6 cell battery pack. The higher the mAh rating, the longer your battery will run before it needs to be recharged again. There are no compatibility issues if your existing battery is rated at 4400 or 4800 mAh or a lower Whr.

All our products carry a full 2 Year warranty and every battery is charged and tested before it ships. We provide a 30 day money back guarantee if you are not completely satisfied. We are so confident in the quality of our batteries, we will pay for any and all shipping expenses if our product fails to perform in the first 30 days you have our battery.

You can expect about 2 - 3 1/2 hours of run time with this UM09F36 battery when new, depending on your energy use. The higher capacity battery cells inside this cartridge have an energy capacity of 5600 mAh. This battery will be compatible with batteries rated at 4400 & 4800 mAh capacities while providing up to 20% more run time.