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{{Raspberry Pi 5 UPS Sets}}
==Safety Instructions & warnings==
* The default charging current is set to 2.1A and charge cut-off voltage is 4.23V. Before connecting your battery to the UPS board, Please carefully confirm the maximum charging current and voltage, exceeding the upper limit of the charging specification that the battery can withstand will not only cause adverse reactions, but may also cause irreversible damage.
* It is essential to read and understand these safety instructions and warnings before charging your batteries.
* Lithium Polymer and Li-ion batteries are volatile. Failure to read and follow the instructions below may result in fire, personal injury, and damage to property if charged or used improperly.
* Never make a wrong polarity connection when charging or discharging battery packs. Always double-check the polarity of the battery's connector to ensure that "+" is connected to "+" and "-" is connected to "-".
* Do not mix and use old batteries with new batteries, or batteries with different brand names.
* Lithium batteries have a limited cycle life. Please replace old batteries with new ones when they reach their service life or when they are two years old, whichever comes first.
* When charging the Battery Pack, please place the battery in a fireproof container. Do not leave the UPS shield on wood material or carpet unattended.
* Keep the UPS shield away from children to ensure their safety.
==Features==