Thankyou Everyone!!!
Hi everyone
Many thanks for replies and suggestions, they are very much appreciated.
To answer a few of your questions as I feel I may have been a little vaigue in the opening question:
This is my final year university project 'The Solar' torch and I am trying to design something as 'Eco-Friendly' as possible...eco materials etc and hense I want to use a Lithium Ion batteries...
The LED array characteristics (6V 240mAh) I have obtained from testing a standard LED Torch as this is the light output I am after. The test incorporating hooking the torch up to a 6V Power Supply and measuring the load with a multi meter.
The 'over discharge' information is very interesting and appears I have mis-interpretted its meaning, if this is correct, then it should be a simple case of connecting my two 4V 100mAh Solar Cells (in series) to my Lithium Ion 7.2V 750mAh battery..
The batteries I have been looking at are as follows which come pre-wired with a protection circuit:
https://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=1340
In response to charging times..it appears approx. 10 Hours in bright sunlight will charge these batteries with monocrystalline solar cells and provide approx 3 hours burntime with the previously stated 6V 240mAh load.
My next challenge is the LED Circuit, I need a Constant, Flashing and Off functions..I have done some brief readings about 'multi-vibrator circuits' and the 555 DIL timer chips, is this my only option?
I only have a foundation in electronics and am 'learning as I go', so if anything I a have said dosen't make sense please say!!