Honda HBP20A Operator's Manual page 16

To obtain the longest possible battery life, read and understand the operator's manual.
EN
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It is good practice to unplug the charger and remove the Lithium-Ion battery
pack when not in use.
For Lithium-Ion battery pack storage longer than 30 days:
Store the Lithium-Ion battery pack where the temperature is below 26°C and free of
moisture.
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Store Lithium-Ion battery packs in a 30%-50% charged condition.
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Every six months of storage, fully charge the Lithium-Ion battery pack.
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Exterior may be cleaned with a cloth or soft non-metallic brush.
NOTICE: This battery pack has equipped with an advanced self-maintenance
function. It can maintain 30% of its charge capacity automatically after it is stored
over one month.
BATTERY PACK REMOVAL AND PREPARATION FOR RECYCLING
Do not dispose of battery charger and batteries/rechargeable batteries into
household waste!
According to the European law 2012/19/EU, electrical and electronic
Li-ion
equipment that is no longer usable,and according to the European law
2006/66/EC, defective or used battery packs/batteries, must be collected
separately and disposed of in an environmentally correct manner.
Consult your local waste authority for information regarding available
recycling and/or disposal options.
WARNING: Upon removal of the battery pack for disposal or recycling, cover
the battery pack's terminals with heavy-duty adhesive tape. Do not attempt to
destroy or disassemble the battery pack or remove any of its components. Lithium-
Ion batteries must be recycled or disposed of properly. Also, never touch the
terminals with metal objects and/or body parts as a short circuit may result. Keep
away from children. Failure to comply with these warnings could result in fire and/or
serious injury.
16
EN
HONDA BATTERY PACK 2.0AH/4.0AH