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FAST!  Click for  BIGGER!HOW TO FIT A USB CHARGE SOCKET TO A POWERCHAIR EASILY

MOST OF US HAVE SMART PHONES TODAY, & THEY EAT BATTERIES!

YOUR POWERCHAIR CAN HAVE A USB CONNECTOR PLUGGED IN VIA ITS 3 PIN CHARGE PORT. BUT NOBODY MAKES ONE.

YOU CAN DO IT YOURSELF EASILY.

 

WHAT ARE YOU LOOKING FOR:

 


Its already possible to buy car's "cigar lighter USB port" device designed to plug your phone into to charge up on the move. These are common, and replace your cars lighter.

This means that the simple bit of electronics needed to turn the cars 12v (or the trucks 24v) into 5v for the USB supply is taken care of extremely easily and comes complete with the required USB socket for around 3 UK Pounds.

All that remains is to connect it to your powerchair. But there's nowhere to plug it in! Well your 3 pin charge socket on your chair is also an outlet and "live" and connected to the chairs 24v battery system at all times.

So all we need do is connect this to the cheap eBay cigar lighter device and we have a safe easy charger for the phone.

There are loads of these devices on eBay for a very low price, and most are 12v / 24v so these are suitable. I used a Belkin manufactured one, simply because I already had it. Almost any will do though. See here

I also ordered a charge socket connector to fit the powerchair, which is a Neutrik or XLR connector. These are about £3 UK pounds. Total outlay £6 here  This is the same as the one on your charger.


 

 
 

 

HOW!

Look at the image on the right.

The BLUE one is the powerchairs charge socket.

The black one is your chargers plug, or your new phone connector XLR / Neutrik plug.

You need pin 1 and 2 only.

On MOST chairs 1 is positive. So it goes to the centre pin on the car cigar lighter plug. And pin 2 is negative and goes to the outside.

My HTC phone, its USB charge lead, and the adapter (top left) that converts the powerchairs charge socket, to a 5v USB phone charge socket. Small enough to keep in a pocket or your wallet.

Take one of these car cigar lighter USB things apart as below.   

The "Belkin" cigar lighter / USB socket designed for a car. £3 from eBay. Obviously dismantled here! Throw away the shell, cut off the steel "wings" (this is the negative). The spring in the middle is positive. It is a mini inverter. It changes 24v to 5v efficiently with nearly no loss or heat.

Here I have already added a 2 core cable to the Neutrik "charger" socket. These are £3 on eBay too. The cable needs soldering, and any old bit of cable will likely do here. This is a bit that came from an old hair dryer. My hair is long gone! The bit on the right is the tiny inverter taken from its case, and changes the 24v to 5v for the USB.

Now has the cable attached. This is the POS side. (the spring.)  Its soldered to, and runs in the spring for added support!

This is the NEGATIVE side. Note the heat shrink tube...  Add a much larger size over the top of the complete thing will protect it when completed. As below.

When you plug in to the powerchair's charge port there will be an LED that lights up. At least on the Belkin version. This is ready to use. Works great. Its that simple.

DON'T GET THE PLUS AND MINUS MIXED UP! It will fry the circuit board most likely.  And waste £3...   If unsure of powerchair charge plug polarity just test it with a volt meter. But the vast majority are as per the diagram above. Tiny bit of simple soldering, and £6 worth of bits! Now I can use sat navigation, display maps on screen, and the phone battery doesn't die. It charges up instead.

Works for any 24v powerchair. Runs and charges iPhones, HTC, Blackberries, Tablets, or anything that normally needs power or charges from a USB port. 

There's a thread on my forum discussing this here  And contrary to some peoples opinion it will not damage your powerchair. That socket can supply 8 amps+ Quite safely. If you worry about these things, its also a good idea to add a 1 Amp (1000mA) fuse in the cable.

 

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