Yes, the internal battery chargers are usually simple and inaccurate. I’d suggest to watch closely the first charging and check the battery voltage after it is charged. The worst case is the battery overcharged that may lead to battery damage or even worse – fire.
]]>I don’t own the T12 Pro with Hall gimbals (I have only T12), so cannot confirm. Some descriptions on the websites state, that USB should charge the Lion batteries. Make an experiment – leave your TX connected to the USB charger for at least 4-5 hours. Then check the battery voltage.
]]>