Recent content by sometrike

You do good without seeing more than you have. >It's hard to tell what the circuit board is doing exactly as it is not a typical ebike part. It’s not a typical anything part. >Just guessing it is a charge controller for Nimh. From what I see, yes with the required dedicated Panasonic...

Sorry I missed the last two thoughtful responses. I'll try to explain what I learned. I was using two different batteries. One was the original ten year old Nimh which I thought I had wakened up. The other is a new NMC, and it is the one that really confused me because it was charged. Both...

Update, this is solved. The problem was that I switched battery chemistries which seemed to cause a pcb within the battery box to fail when I connected it to the replacement cells. It turned out that all I had to do was plug the battery pack (original cells) back in to the chair to reset the...

The fuse is between the pcb and the pigtail to the wheelchair. It is not affected by this since it wasn't connected. I see no other fuse. I think the voltage regulator you mean is marked U5 on the schematic. I found that on the backside of the pcb, lower rt near where power come in, 8 legs...

That one blinking red light is the only sign of life, but all four lights should be steady on instead. Nothing works, there is no 24V+ output at the connection to the chair pigtail like there should be. And I just now hooked the battery up and measured zero voltage across the two outside FET...

These are pics of the same blown battery pcb, left and right side. There is only one MOSFET on the board.

Thanks for thinking about this. I'm having trouble getting my pics small enough to post just now. Nothing appears burnt. Actually this happened twice. I couldn't believe when the backup failed, so I ended up wrecking my main board too. The speed controller would not be involved since it was...

So I want to try to put this in to terms I can understand. The Amps part is like how big of a bucket energy you have. And the mAh is like the size of the spigot at the bottom indicating how much you can get out at wide open. Correct it in those type terms anyone.

What could the trouble be? I had a weak but working 24V NIMH battery pack for something called an IGlide wheelchair. Name doesn’t matter too much except it is a light weight chair with two brushed motors and the controller is on the chair. The battery pack has it’s own circuit board which is...

I have some battery packs which are made up of cells marked: Samsung ICR18650-22P They are supposed to be 4.4Ah, which I think I understand since there are 14 cells which would be two sets in parallel. Does that sound correct? When I google Samsung ICR18650-22P, I find sellers advertising...

I want and need to change the type of battery I use in my mobility device. I cannot change the controller. So fully charged what would be the full voltage for the various 24 volt factory fresh packs using the proper charger for each? LifePo4 Nimh Limn Thank you

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Glad she's out of the WC. Yes the steering pivots, and pictures are deceptive. Your other Quickie is probably a GPV, another great old chair. The steel folding one is considered a hospital chair, nobody wants heavy steel for permanent use.

Also, it looks like you have the rear wheels about as far forward as possible, but if not move them even more forward. The more weight you can get on the rear wheels and off the front casters the easier the chair will move and turn. You might even consider fabricating something to move the...

You have done a fantastic job of re-purposing the Q2 chair for Tiny. I am a full time wheelchair user myself and these Q2 chairs lend themselves to being rebuilt for quite nicely for other purposes. I think I can help you. Look closely at your caster steering axles. In the wheelchair world...