3.7V Battery Charger Schematic

[paku]

i need help who have schematic or pcb lay for this charger
etch one is 3.7V 5000mAh
i want use combine it to 4pcs battery so i get 14.8V can use it to IDX Or TGS

[traverso40]

This is fully functional
Battery_charger.pdfBattery_charger.pdf

[paku]

This is fully functional
[ATTACH]30333[/ATTACH][ATTACH=CONFIG]30333[/ATTACH]

bro dont you have the LAY file

[traverso40]

I have the file format. brd eagle 6.5.0

[ppodg]

Hi paku,

Just buy an rc model charger, popular imax b6ac (or any clone) will be more then enough. First of all DO check the real capacity of your li-ion cells - they are probably plain chinese sh.t, because even the best 18650 li-ions never have more then 3500mah. Most of ebay cheap 'ultrafire' junk is ~600mah, but you can find even 6000mah on the label! here you can see a good example: http://budgetlightforum.com/node/27603

[paku]

Hi paku,

Just buy an rc model charger, popular imax b6ac (or any clone) will be more then enough. First of all DO check the real capacity of your li-ion cells - they are probably plain chinese sh.t, because even the best 18650 li-ions never have more then 3500mah. Most of ebay cheap 'ultrafire' junk is ~600mah, but you can find even 6000mah on the label! here you can see a good example: http://budgetlightforum.com/node/27603

hahah very nice info bro now i will try opeen in side my battery and check what i have in side

[ppodg]

This topic is also worth a look: http://budgetlightforum.com/node/13539

[paku]

Now I Have open My Battery I get some liquit and look like roll off plastic inside
is that orignal or fake i get much splash when open hahaha

[traverso40]

my charger works for over 5 years and has never had any problems and even the battery 18650 4200mA.

[paku]

my charger works for over 5 years and has never had any problems and even the battery 18650 4200mA.

do you have PCB lay for that schematic cos i dont have skill to make That PCB lay

[ppodg]

Well, less then 1000mah, I think...

traverso40, have you measured the REAL capacity?

[traverso40]

@ ppodg Yes real capacity is 3800 mA after 50 charge cycles.
@ paku No sorry i have file *.brd from cadsoft eagle.

[paku]

ok No Problem

is that on my image is original UltraFire Battery Or Fake Battery

[ppodg]

@paku: fake, of course, well below 1000mah, I presume.

@traverso40: manufacturer, please? As far as I know the largest 18650s are 3350mah by Panasonic

[traverso40]

Ultrafire , nominal 5000mA effective 4200-3800