Overheating and not charging

[vortexco]

Drove to Gatwick from Norfolk on Sunday, and as you may or may not be aware is was a hot day. My car does not AC so it was hot in it.

I was using SAT Nav software on my phone and a genuine Sony car charger and lead.

The charging (spark) icon was showing so i assumed that it was charging.

But within 3 miles of my dest, the phones battery died and the phone shut off.

When i found the location that i was going to i removed the phone from the windscreen (nearly burn't myself on it) and removed the battery to let it cool down.

I left it off for a couple of hours before starting my return journey, and reconnected the charger and by the time i was at Dartford crossing it had recharged fully.

My question is, because i had the phone mounted in the windscreen on such a hot day, the charger plugged in with a sat nav app running which would have kept the screen switched on, using the CPU, would this have overheated the phone and caused it not to charge? Could i have done permenant damage to it? P.S it seems ok now though.

Thank you

Carl

[FrontierGate · Accepted solution]

You shouldn't have done that.

The temperature can get up to 50 to 60 degrees Celsius on the windshield under the sun in Summer.

Yes, there is a temperature sensor for the battery, so when it is too hot, it won't charge.  The phone's charging circuitry needs to monitor the battery temp so if it rises beyond a given threshold it backs the charging current off until the temperature stablises, ensuring the battery remains within safe limits.