Hacked Mobile Battery. Start Up Project 13

4AHere is a “Green Project” for you to reuse the discarded Mobile phone battery. When I purchased a new Mobile phone, the old one became junk. But it has a very good high efficiency and long lasting Lithium Ion battery rated 3.7 V, 1800 mAh. So I decided to reuse the battery for an alternate purpose. A simple power supply with DC- DC Booster capacity and a White LED emergency light. It can be charged from any USB charger or Laptop. Its output can be adjusted from 3.7V to 37 volts. The DC-DC Booster module boosts 3.7V from the Mobile battery up to 37 volts when turning the pot. The Power supply unit is ideal to power all projects that require 3.7 V to 37V. Its emergency light helps to do work in low light conditions. You have a number of Mobile battery in your Junk box. So try this Green project .It is a worth.
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Portable Power Bank. Home Utility Circuit 11

downloadHere is a simple Portable Power Bank that finds many uses. It can be used as a Portable Mobile Charger or it can be used for powering the bread board projects and so many applications that requires 5V Regulated DC. Let us make it.
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Power Bank. Simple Design 23


Here is a Power Bank for charging your Mobile phone while traveling or in the event of power failure. This power bank can deliver 4.5 Volts with reasonable current to charge the Mobile phone quickly. It can charge the Mobile phone 3-4 times . The Power bank uses a 4.5 V Rechargeable battery that can be charged using the Mobile phone charger or from the USB port.
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