4400mAh 11.1V Laptop Battery for Acer Travelmate 5520/5220/5720/5230/5320/5310

Replacement notebook battery 5220 5520 for acer with full capacity
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Product Features:
Over-charge protection
Over-discharge protection
Over-heat protection
Over-current protection
Short-circuit protection
High capacity circulatory function
Low Power Consumption IC Design
No Memory Effect
High Charge currentController IC monitors each cell voltage and prevents the cells to overcharge or over discharge and prevent over current
Use temperature protection NTC. Use insulation paper to isolate electrodes. Use fire protection glue paper and silica gel for safety features.

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4. Package: Carton box with anti-static plastic an pearl wool,
                            Customer's design box and customer's logo available.

5. Payment Terms: TT/ Western Union/Money Gram, Cash,Escrow, Paypal

6. Shipping Methods:  By Express,DHL,UPS,EMS,Fedex,Hongkong Post. By air, By sea

7. Shipping time: 3-5 working days after we confirm to receive your payment

8. Price Terms: FOB Shenzhen/HK

Tips to extend your laptop batteries life:
1.Try to avoid frequent full discharging of the battery. 
2.For battery meter calibration, periodically do a full battery discharge, every 30 charges, to increase meter accuracy
3.The Rechargeable your battery undergo self-discharging when left unused for a long time. So it is necessary to recharge the battery after a storage period. 
4.Avoid heat, heat is the battery enemy, the temperature in a car can easily rise 50F in a single hour, in some cases reaching 140F. 
5.If you plan to place your battery  in storage, be sure to have the charge at 40% and stored in the fridge (not freezer) for maximum battery longevity. 
6.Don not setting a metaillic object on your Rechargeable battery connect metal or it maybe short circuit terminals. 
7.Do not drop or mutilate your battery, and do not try to disassemble your laptop battery pack. 
8.Please take out the battery pack from your machine when it is not being used.

How To take care your laptop battery?

When using a laptop as a desktop replacement the battery should not be left in for long periods of time. The laptop will over time discharge the battery. Remove the battery,making sure that it is charged to 50% and store it in a dry, warm place. Ensure that it is wrapped protectively and nothing will be dropped on it.
The battery should be re-installed every 3-4 weeks and allowed to fully discharge. Leaving a battery in storage for longer than this without using could cause the battery to fully discharge as the circuitry of the battery itself consumes power.
Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant state of charging up and that will reduce the life cycle of the laptop battery.