I have a couple of these boards. An LED comes on when the cap reaches 2.5V , What I wonder is does all the current then get shunted to the lower capacitors in turn to fill them up or does the excess get shunted to ground and lost?
I don't sem to be able to upload a jpg or png so here is a link
http://www.ebay.com.au/itm/281770685958?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

does the excess get shunted to ground and lost?

Have you considered the idea that the board turns the charging current off when the capacitors are full?

 

Have you considered the idea that the board turns the charging current off when the capacitors are full?

No but as I charge them at 4 amps I connect to the first and last terminals on the capacitors themselves . To have it cut off by the board there would need to be circuitry on the board to connect to . I do not see any The first and last board teminals appear to be connected directly to ground and Positive.

 

I guess you'll just have to provide a schematic if you want a specific answer.

 

there would need to be circuitry on the board to connect to . I do not see any

I see lots of circuitry on the board and a 6 wire connector that plugs into the board.

 

I think they are just shunt regulators in a series string, they hard limit the voltage on the caps.
If you try to push heavy current through once the Vmax is reached, the board gets nice and warm.

 

On the link above slide the pics across for a connection circuit. Don't have a circuit or it would be easy wouldn't it ! Been trying to put a pic n but site won't take it .

Here is another of similar ilk .but a single board
http://www.ebay.com.au/itm/381851790000?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I see this is one of those silly sites that won't let you change your post.!

(Moderator's note: Offensive comments removed. You will gain the ability to edit your posts after you have been active for a while, that is if you can refrain from offending those trying to help you and play nice. -dc)

 

I think they are just shunt regulators in a series string, they hard limit the voltage on the caps.
If you try to push heavy current through once the Vmax is reached, the board gets nice and warm.

A single board shows three one ohm or so resistors on one side of the positive terminal. Neg seems to pass through a transistor or diode marked D1804 a Q1 marked "y2" and a "u1" marked 431. Resistors to neg are 12K 615 ohm and 180K . .

 

@Bob James You just insulted two of the most knowledgeable and helpful members on this or any electronic forum. It's unlikely that there is anyone here who can give you what you need.

 

Insulted two old helpful members and this site.
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