Hitachi VM-3700A Instruction Manual page 21

CHARGING A BATTERY
NOTES:
1. The time required for charging the battery is approx. three hours.
2. When fully charged, the battery should supply approx. 90 ~ 120 minutes of operating
time (depending on how much you use zoom and pause).
2. Charge the battery after use and store it at normal room temperature.
3. Recharge the battery at least once every six months. The battery is a lead-acid battery.
This battery tends to discharge if not used for an extended period of time. If the battery is
stored for an extended length of time without being recharged, you may not be able to
recharge it.
4. A battery charged after being stored for a long period may not supply power for the
specified time. Additional rechargings will help restore the battery's operation time.
5. The battery should be charged at a temperature of 50ºF - 86ºF (10ºC - 30ºC) to prevent
damage.
6. Do not operate the battery at temperatures below 14ºF (-10ºC) or above 95ºF (35ºC).
The battery may be damaged if operated at temperatures above 122ºF (50ºC). Operation
time will decrease at extremely low temperatures.
7. After repeated chargings and use, the operation time will gradually decrease. When
operation time becomes too short to be useful, it is time to replace the battery.
8. If "CHARGE" and "POWER" lights on the AC adaptor/charger start flashing, remove the
battery and then reattach it. If after several attempts both lights continue to flash, this
means your battery cannot take a charge and must be replaced with a new one.
The "CHARGE" light will not light if a hot battery is attached to the AC adaptor/charger.
Attaching an extremely hot battery to the adaptor/charger is not recommended; it should be
allowed to cool down before being attached.
9. Do not short the battery's terminal.
10. Do not attempt to disassemble or modify the battery. There are no user serviceable
parts inside.
11. Throwing the battery into a fire or exposing the battery to excessive heat - over 149ºF
(65ºC) could be hazardous.
12. Be sure to set the "POWER" switch to the "OFF" position before removing the battery.
ATTENTION:
The product that you have purchased contains a rechargeable battery. The battery is
recyclable. At the end of its useful life under various state and local laws, it may be illegal to
dispose of this battery into the municipal waste stream. Check with your local solid waste
officials for details in your area for recycling options or proper disposal.
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