Sounds just like mine (with the red/blue lights). You can ping the top off pretty easily and look inside - but if you find there is no battery protection circuit I'd be sure to keep it always charged - when mine discharged itself the battery actually leaked liquid everywhere!
Otherwise they're great little devices. The power supply doesn't shut itself off when very little power is drawn - so it can keep an Espruino Pico running just fine.
Some other battery packs I've seen don't detect the Pico as there isn't enough power draw and shut off :)
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Sounds just like mine (with the red/blue lights). You can ping the top off pretty easily and look inside - but if you find there is no battery protection circuit I'd be sure to keep it always charged - when mine discharged itself the battery actually leaked liquid everywhere!
Otherwise they're great little devices. The power supply doesn't shut itself off when very little power is drawn - so it can keep an Espruino Pico running just fine.
Some other battery packs I've seen don't detect the Pico as there isn't enough power draw and shut off :)