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Compact solar charger / flashlight

by dkennell, published

Compact solar charger / flashlight by dkennell Jan 1, 2013

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Description

This compact solar phone charger has a one-piece case, a 2 watt solar module, and a 2700 mAh lithium ion battery. The 3 bright white LEDs give a nice focused beam for a flashlight.

Recent Comments

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Thanks!!

I have uploaded the Inventor file, as well as STEP and IGES formats. Hopefully one of those will work for you.

I happen to have almost all of the parts for this, but would like to remove the flashlight portion, and make the batteries removable. Are you willing to share whatever cad file you have for the source for this? Thanks!

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Instructions

Print case and assemble electronics. Use the 10 ohm resistor for the 3 bright white LEDs in parallel and the 1.2 kohm resistor for the 3 mm indicator lights.

Comments

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brucethehoon on Jan 7, 2013 said:

I happen to have almost all of the parts for this, but would like to remove the flashlight portion, and make the batteries removable. Are you willing to share whatever cad file you have for the source for this? Thanks!

dkennell on Jan 7, 2013 said:

I have uploaded the Inventor file, as well as STEP and IGES formats. Hopefully one of those will work for you.

thecrazy on Jan 2, 2013 said:

Ouch.. thats an expensive bom.

mcstar on Jan 2, 2013 said:

Good point,

So I did the math and at $95 worth of parts, and gathering 24 watt/hours per day (assuming 12 hours of direct sunlight and 100% charge efficiency which is not possible), it would take you ~88 years to collect enough energy for the device to pay for itself. This also assumes you pay about $0.12/KW for mains power and all the components last that long.

MangoT21 on Jan 2, 2013 said:

Is there a kit for this? List of parts?

dkennell on Jan 2, 2013 said:

Check out the BOM (bill of materials) pdf. There is a complete list of parts.

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