Magnetek E10674-0 User manual

TC10674-0 Rev. E 11/2007
N49 W13650 Campbell Drive
Menomonee Falls, WI 53051
Toll Free: 800-288-8178
Telephone: [phone]
Website: www.magnetekmh.com
E10674-0
NiMH Battery Charger For the
BT108-0 Battery
Note: All new rechargeable battery packs must be charged before usage.
GENERAL PRECAUTIONS
•Use of this device is intended for charging BT108-0, NiMH (Nickel Metal Hydride) rechargeable
batteries only.
•Do not attempt to use this product on non-rechargeable battery packs.
•For best performance of the battery, avoid charging the battery pack for more than 24 hours.
•Please familiarize yourself with the instructions before attempting to use.
•Do not dispose of a battery pack in fire; it may explode.
•Do not charge or operate in a hazardous environment.
•Do not short circuit battery or charger.
•Do not attempt to charge a damaged battery.
•Do not attempt to open the battery pack.
•Recharging a battery only after it is fully discharged will prolong its life.
•Avoid recharging battery when fully or near fully charged.
•The charger unit is not intended for outdoor use. Use only indoors.
•Keep the battery pack environment cool during charging operation and storage, (i.e., not in direct
sunlight or close to a heating source).
•Always dispose of used batteries per appropriate regulations.
•Rechargeable batteries, for longest life, should be recharged at least every 6 months even if they
are in storage.
CHARGING INSTRUCTIONS
•Plug charger power supply in to 110 VAC 60 Hz power source. The charger will have about 14
VDC across its + and H terminals with no battery in it. The plus terminal is labeled “+” and
negative terminal is labeled “H”.
•Slide battery in to charger until the battery latches.
•The single red LED will come on, when a battery pack is inserted in the charger and the charger
detects a good battery.
•There are three charging levels: High rate: 500 mA, Top off: 40 mA and Trickle: 13 mA.
•The charger automatically switches from “High rate” to “Top off” then “Trickle” charge by
measuring rate of change of temperature and time of charging.
•If a discharged battery pack is too cold the LED will come on and it will trickle charge until the
pack warms up and then switch to high rate charge.

TC10674-0 Rev. E 11/2007
•It should take 3 to 4 hours to charge a fully discharged pack, at which point the LED will turn off
and the charger will add a top off charge and then switch to trickle charge.
Conditioning: A rechargeable battery pack may experience a low usable capacity during the first few charge
cycles due to long storage. Do not be concerned. To condition a battery, simply charge and completely
discharge your battery pack through normal use for 5 cycles and you should obtain a nominal capacity. Also,
if your battery capacity appears degraded after frequent recharges, repeating the above procedure may restore
some of the lost capacity.
A fully charged battery will be over 8.0 VDC. A fully discharged battery will be under 6.0 VDC.
If there are any problems or questions in the operation of this unit please contact Magnetek Service as follows:
During normal business hours Monday through Friday (7:30am – 5:00pm CST) 1-800-288-8178.
After normal business hours 1-866-MAG-SERV (1-866-624-7378).