Denso BHT-805BW Operator's Manual page 7

To System Designers:
When introducing BHTs in those systems that could affect human
lives (e.g., medicines management system), develop applications
carefully through redundancy and safety design which avoids the
feasibility of affecting human lives even if a data error occurs.
Handling the battery cartridge
Never disassemble or heat the rechargeable battery cartridge, nor
put it into fire or water; doing so could cause battery-rupture or
leakage of battery fluid, resulting in a fire or bodily injury.
Do not carry or store the battery cartridge together with metallic
ballpoint pens, necklaces, coins, hairpins, etc.
Doing so could short-circuit the terminal pins, causing the batteries to
rupture or the battery fluid to leak, resulting in a fire or bodily injury.
Never put the battery cartridge into a microwave oven or
high-pressure container.
Doing so could cause the batteries to break, generate heat, rupture
or burn.
Avoid dropping the battery cartridge or letting it undergo any shock or
impact.
Doing so could cause the batteries to break, generate heat, rupture
or burn.
Never charge the rechargeable battery cartridge where any
inflammable gases may be emitted; doing so could cause fire.
Only use the dedicated charger 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.
Handling the BHT
Never put the BHT into a microwave oven or high-pressure container.
Doing so could cause the BHT to break, generate heat, rupture or
burn.
vi