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GPSMAP 640 Laptop Battery can replace original equipment manufacturer battery ,
Don't place
GPSMAP 640 laptop battery
in laptop for a long period of time if the laptop is not being used.
Let the power of the
GPSMAP 640 batteries
(15%) drain to 0% When you use your brand new Battery first time. And then full charge
it(usually chrage it full 12 hours)
and let it drain to 0% again. Do this for 2~3 cycles.
Do not forget to take away your
GARMIN GPSMAP 640 battery
from the device if you will not use it for a long time
With lithium-ion batteries, full charges and discharges are
best on a regular basis.
GPSMAP 640 Li-ion batteries do not
suffer from the memory effect.
Do not drop, hit or otherwise abuse the battery as this may
result in the exposure of the cell contents, which
are corrosive.
Make sure to plug your
GARMIN GPSMAP 640 laptop charger
adapter into a UPS and not directly into a power outlet or surge protector.
Always keep the battery pack out of reach of infants or
small children.
Do not expose the battery pack to direct sunlight. Never
store or use the battery pack in an unventilated vehicle
where excessive internal temperatures may be encountered.
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