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1. Carefulnessly read narrate book of battery, use commendatory battery.
2. Research whether the electric appliance and the Dell inspiron 1440 laptop batteries contact elements is whether clean, when necessity clean with the wet cloth mop, after dry loads according to the correct polar direction.
3.When non-adult custody, don’t let the child replace the battery, compact battery like AAA should be placed at somewhere the child can't attain.
4.Don't mix up new and old batteries or put different model batteries together.
5. Don't try to make Dell inspiron 1440 battery rebirth use of hotting up, charging, or other way.
6. Don't let battery short circuit.
7. Don't hot up inspiron 1440 laptop battery or loss it in water.
8. Don't strip battery.
9. Electro-adapter should be cut switch after use.
10.Dell inspiron 1440 battery shoud be take off from adapter when it is long time no use .
11.Battery should be stocked in cool and dry places.
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