Specifications: Battery Type: Li-ion Voltage: 11.4V Capacity: 42Wh/3Cell Certificate: CE,RoHS,FCC Condition: 100% New from Manufacturer, Grade A Cell, 12 Months Replacement Replace Part Number: 7CJRC 21X15 021X15 Compatible Laptop/Notebook Models: Dell Latitude E7470 E7270 Series NOTE: Please make sure if this battery suit for your laptop or not before place an order./"Ctrl/" + /"F/" to find your models If you can not make sure that ,please contact with us freely. ZTHY laptop battery instruction: 1. The new ZTHY battery need to charge and discharge 3-4 cycles before, takes about 7-8 hours in order to activate lithium ion fully to maximun space. 2. Please don’t discharge to the computer power off, otherwise it may be damaged easily and may not be charged fully. 3. In order to protect your battery life,you can full charge to 100% and drain to 10% for three times,then the capacity will recover. 4. If you do not use battery for a long time, make sure to charge more than 80% electricity every month.
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