Kenwood TH-42A - Manual (Page 9)

BATTERY INFORMATION
NiCd BATTERY PACK (PB-32/PB-34)
You must charge the battery pack before you can use it.
The pack is delivered uncharged to provide you with the
greatest number of charge/discharge cycles. It takes
several charge/discharge cycles before achieving the full
battery pack capacity. After storing the pack for more
than 2 months, recharge it before use.
Recharging
Insert the plug from the BC-17 charger into the DC IN
jack on the right side of the transceiver. Then plug
the charger AC plug into an AC wall outlet. Do not
charge the battery for more than 15 hours. Exceeding
the recommended charge period shortens the useful
life of the pack and adversely affects battery
performance.
DC IN jack
Note:
► Recharging should be done within an ambient
temperature between 5°C to 40°C (41°F to 104°F).
Recharging outside this range may not fully charge the
battery.
K If the entire display is blinking, or if turning PWWVOL
clockwise does not power the transceiver, recharge the
battery pack.
^ The BC-17 charger is designed to recharge only PB-32,
PB-34, PB-30 (option), or PB-33 (option). Never use
the BC-17 to recharge other types of batteries.
Installing/Removing the Battery Pack
Insert the battery pack into the bottom of the
transceiver, and push in until the tab on the pack
locks in place.
To remove the battery pack, simultaneously press the
tab on the back of the pack while pulling out the pack
from the transceiver.