Life Saver Led Torch - Rechargeable

My parent go to native place where there is lots of load shedding throughout the day. So they needed a torch which should be powerful,handy,light weight and lastly rechargeable. What i designed in this instructable satisfied their needs and feels great to put forward my design to help others.

WARNING : Do not expose your eyes to direct LED since i felt nauseous and was down with severe headache when exposed to direct view of LED's.

Step 1: Required Materials

> Old waste phone (for battery + panel + connectors FOR USE)
> LED (1-watt) + Heat Sink (Rs.25 = $0.5 per piece)
> Wires for connections
> Press button switch (taken from $2 china made mosquito racket)
> Adhesive (Feviquick Rs.10)
>A very small Acrylic piece or anything that satisfy the needs will do
> Solder (for soldering connections)

Comments

[zack247]

just curious, but how do you recharge it?
youd most likely need the rest of the phone or a phone that takes a similar battery to recharge it.

[samalert]

yes tats correct, actually my parents use phones with similar battery so it was suiting them, they replace and to point out the battery i charged is still 3/5 filled till yet and have used it about 10-15 mins daily and its 12th day.

Dont know about how can one charge except the similar fitting mobile

[francisdsa]

you can recharge the battery using any other mobile phone. simply pull out (tap) some wires from another phone's battery connector and route it to the connector on your torch. the battery can be charged using any phone. the battery types are usually the size which fit different mobiles. the rating is dependant on the battery size while the voltage on all mobile batteries are 3.7 V. presently i am using an old mobile phone to charge my laptop's cells removed from the battery pack. it works great.... the plus point here is that the mobile phone also gives out indication to if the battery is fully charged....


i can reuse these laptop battery cells (18650 type, 3.7 V li-ion cells) by charging them on an old mobile phone and reusing the battery on a manmade torch which features a 3 Watt bulb. i connected three batteries in series and am planning to make a powerful 10 LED watt torch.. work in progress..

just not getting a proper case for the torch (and time) in India.