On Saturday, 11 May 2019 13:26:44 UTC+1, David WE Roberts (Google) wrote:
On Sat, 11 May 2019 13:22:21 +0100, Harry Bloomfield wrote:
David formulated on Saturday :

It claims that there is a blocking diode included to prevent reverse
current flow.

No, that simply means it will not discharge a battery, when it is unable
to charge it (in the dark).


Does this mean that I don't require a charge regulator?

You probably wouldn't need a charge regulator to use it to charge a 12v
car battery, its output is quite small at 0.30 amps.


For example, if I plug a USB 12V charge adaptor into the supplied cigar
lighter socket should that be all I need to charge a power bank? Or,
for that matter, a mobile phone?

A 12v to USB cigar lighter adaptor will include a 5v regulator.

Thanks.

The remaining question is "Is it safe to feed 16.5V into an adapter?".
I am assuming that it can cope with 14V+ as that is what an alternator
allegedly pushes out, and I assume that this gets as far as the cigar
lighter socket.

Cheers


Dave R

Modern cars disconnect the cig lighter socket when the engine isn't running, so that won't work. 5w is such a low charge rate that it can be left on indefinitely, albeit not ideally.


NT