Breif show of battery light

Hi, i have a 2003 c3 1.4 with 65k , i have just had the timming belt renewed and this morning i had the battery warning light show while driving (around 30mph) for 20 seconds or so when it eventually went out ,i have since been out to the car were i started it and switched a lot of electrical equipment on and no sign of warning light,now i know a warning light is a warning light but just after nearly £200 for timing belt i am hoping its not a new battery and alternator just yet....no sign or noise of belt slipping etc,would a electrical check on the battery and alternator show up and pinpoint the problem or is their a common issue with the C3 with this,any help would be apreciated .Thanks

would a electrical check on the battery and alternator show up and pinpoint the problem

If you are worried a load test on the battery and charge test on the alternator could put you mind at rest.

Batteries don't last for ever and cold weather puts the most stress on a failing battery. Euro Car Parts are worth checking for prices.

Personally, I would wait and see if you get the 'no charge' warning again, if its just a one off, no need to worry.

is their a common issue with the C3 with this

There are some mentions of charge problems due to the alternator output electrical connection getting corroded on the C3.

Thanks for the reply, touch wood its only done it this morning ,damp and drizzly.