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LiPo Battery Safety
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LiPo Battery Safety

by travistrue2008 on Mon Nov 20, 2017 4:13 pm

I'm making my own portable handheld emulator/console to sell at the local swap meet (no pre-installed games). The device would be powered by a 3.7v 1200mah LiPo battery, and will use the PowerBoost 500C+ to provide power to the Pi Zero, and recharge the battery. The enclosure is going to be 3D printed, and reinforced with a resin coat. The Pi will have a heat sink, and air vents for airflow. Are there any safety guidelines I should apply to the product's design?

I know LiPos can be dangerous if over-charged, under-charged, if their casing gets damaged, etc. The fact that damaging the casing could cause an explosion seems dangerous-enough to me, yet phones take all kinds of abuse and there are rarely stories about their batteries exploding.

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Re: LiPo Battery Safety

by adafruit_support_bill on Mon Nov 20, 2017 4:59 pm

The PowerBoost charge circuit uses a conservative charge rate that should ensure a safe charge cycle. Assuming that you are using a cell from our store, the discharge rate will be limited by the protection circuit in the battery.

Your enclosure should shield the battery from external impacts. Just make sure that it is secured on the inside and protected from contact with any internal components or interior features of the enclosure.

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Re: LiPo Battery Safety

by travistrue2008 on Tue Nov 21, 2017 12:35 am

I'm also using Adafruit LiPos along with the PowerBoost, so that gives me some peace of mind. Thanks! The battery is designed to be held between the controller PCB and the Pi Zero, but away from both boards so they don't make contact.

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Re: LiPo Battery Safety

by adafruit_support_bill on Tue Nov 21, 2017 6:59 am

Sounds like a safe build then :)

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Please be positive and constructive with your questions and comments.