Mains powered mod - hard to build?

[breaktru]

Aug 28, 2013 13:27:18 GMT raid2506 said:

I looked at the board you pointed out fred and you are right, it's limited to 1a, but......

If you change the resistor I circled you should be able to change the amp output:



A value of about 500r should give you 2 amps. Would have to play with one and do some sums to be certain.

Is a PITA changing SMD components though, even with a 0.5mm tip on your iron.

I have used that USB charger before in a few mods for charging Li-Po batts and the best I can get out of it is 850ma. They come set for 500ma.

[raid2506]

I've just ordered one to play with, it's specced as set up at 1 amp?

Did you change the resistor breaktru or just run it as is?

[breaktru]

Aug 28, 2013 22:50:20 GMT raid2506 said:

I've just ordered one to play with, it's specced as set up at 1 amp?

Did you change the resistor breaktru or just run it as is?

Yes I did raid.

The claim was it was set for 1A but was actually 500ma

[raid2506]

Will check mine when it arrives.

Was your's ordered from eBay? If so report to sod.

[breaktru]

Aug 28, 2013 23:19:48 GMT raid2506 said:

Will check mine when it arrives.

Was your's ordered from eBay? If so report to sod.

Don't remember where I bought the first 5 but the second 5 were from ebay. I've only tried tweaking the one board. Probably the one from the 1st batch.
In case your interested, here is a Review of the TP4056 controller

[raid2506]

Thanks for the link breaktru, that's a good write up.

I do think it's possible to up the amps as well as drop them, though a heatsink would be required.

Am going to fry a couple of boards soon, at that price I can afford to play.

[Wobblybootie]

I have no real idea when it comes to working out how to get the wigglies coming out of the end of a bit of wire to do what I want them to do (without allowing the magic blue smoke to escape) so I will sit back and watch developments closely. I do like the idea of a semi permanent vaping machine ...