Denso BHT-8000 User Manual page 37

ï When replacing dry cells, always replace both of them with new alkaline manganese batteries
(LR03).
ï You may charge the rechargeable battery cartridge with the optional CU-8001/8021 communication
unit or optional C-600 charger. For the charging procedure using the CU-8001/8021, refer to
Chapter 5. For that using the C-600, refer to the "C-600 User's Manual."
ï If the "Replace the batteries!" or "Charge the battery!" message appears after the BHT undergoes
any shock or impact, turn the BHT off and on and then check the battery output level. The battery
may not have run out.
Only use the dedicated charger (CU-8001/8021 or C-600) for
charging the rechargeable battery cartridge.
Using a different type of charger could cause battery-rupture or
leakage of battery fluid and result in a fire, bodily injury, or
serious damage to property.
Never charge a wet or damp battery cartridge.
Doing so could cause the batteries to break, generate heat,
rupture or burn.
Chapter 2 Getting Started the BHT and System Mode
21