Introduction: Increase Battery Capacity of Solar LED Flashlight Phone Charger
This guide will explain how to drastically increase your charging capacity for your Solar LED Flashlight Phone Charger Emergency Dynamo Crank and build a 3 way adapter
NOTE OF CAUTION - DUE TO THE NATURE OF THIS MOD IT COULD POTENTIALLY DAMAGE YOUR DEVICE, BY READING THIS YOU ACKNOWLEDGED THIS - I have never had this happen running up to a 1500ma battery but the danger still exists
Solar LED Flashlight Phone Charger Emergency Dynamo Crank
Soldering Iron + Solder
3.7v battery with a greater capacity than 330ma
Small Phillips Head Screwdriver
MicroUSB to USB cable (used to charge almost all smartphones)
Issue #1 - Lack of a microUSB adapter
-Building a: USB -> Charger IN/OUT <- MicroUSB
Issue #2 - The tiny 330ma capacity battery
-Replacing the battery
Step 1: Disassembling the Device
For the battery I am using a 3.7v 1130ma Lithium Ion battery that I took from an android phone.
Step 1 - Go ahead and open up your device by removing the screws (4) in the corners; try to do it slowly as to keep your buttons from falling out.
Step 2: Prepping the Batteries
Step 3 - Prep your replacement battery by scratching up the contacts (use a screwdriver), this allows for a proper solder bond
Step 3: Switch the Batteries
Unsolder the two wires from the terminal on the board as it's a good idea to increase the gauge of the wire
Then solder the new wires to the new battery
Step 4: Test and Reassembly
Test the device by connecting it to a power source, if charge light appears and stays on for an extended period then you can call it a success.
IF you would like to convert the (included in kit) USB to 2.1mm Jack to a 3 way USB->2.1mm<-MicroUSB then go here for the instructable