On 11/08/2015 12:48, DerbyBorn wrote:

I have a single cell charger for a 3.7 volt torch battery. It has an LED
that is currently flashing red. Any idea what this might mean. Is it
charging or a fault?

Was a battery being charged?

Mine does flashing red for failed or dead battery.
Red/green alternately for precharge discharging.
Red solid for charging.
Green when charged.

I have seen it go green in the past.


Measure the terminal voltage of the battery to see if it is within
reasonable bounds. Lithium cells tend to fail badly when they go.

--
Regards,
Martin Brown