Got my self a GT Power A610 charger the specs as below :

The GT A6 is a very advanced charger, able to charge, balance and discharge Lion, LiPo, LiFe (A123), NiCd and NiMH batteries on a maximum output power of 200W.It can charge or discharge up to 18 cells of NiCd / NiMH and 6 series of lithium batteries with maximum current of 10A. It can accept three types of Lithium batteries (Lilo/Lipo/LiFe).
Features;
Microprocessor controlled
Delta-peak sensitivity
Individual cell balancing
Li-ion, LiPo and LiFe capable
Ni-Cd and NiMH capable
Large range of charge currents
Store function, allows safe storage current
Time limit function
Input voltage monitoring. (Protects car batteries at the field)
Data storage (Store up to 5 packs in memory)
Battery break in and cycling.
Spec.
Input Voltage: 10~18v
Circuit power: Max Charge: 200W / Max Discharge: 25W
Charge Current Range: .1~10.0A
Discharge current range: .1~5.0A
Ni-MH/NiCd cells: 1~18
Li-ion/Poly cells: 1~6
Pb battery voltage: 2~24v
Weight: 540g
Dimensions: 143x124x37mm
This charger has a JST-XH charge plug, any pack with a JST adapter.

It has a fast charging  and auto cell count option which we tried  and it worked wonderfully .

Bought one of these PC SMPS : Rs 450/- and  did a bit of  cutting and soldering under the able guidance of Saju :

http://is.gd/3bXz0

Soldered 3 wires each of + and - from the 12 V out put connectors and  soldered them to a female dean plug , I  soldered the male dean's to the crocodile clips base to make a parallel connection from clips for the SMPS  .

Followed the procedure strictly as mentioned  and I had a power supply suitable for the 10 Amp 200 watt charger  

Saju Please post the instructions page link I don't know how to do it  any way using the PC SMPS was your Idea  

Will post some photo's soon
Sai

Saju/Sai,

Thanks for the innovation - using SMPS for power supply. I am sure that this would be applicable for other charges as well.


Pankaj

If one can get by with 5A max. (enough for the majority of applications), a laptop supply is a very neat solution. Normally rated : 15-15.5V@ 5.5A.

Quote from: sushil_anand on October 21, 2009, 01:09:03 PM
If one can get by with 5A max. (enough for the majority of applications), a laptop supply is a very neat solution. Normally rated : 15-15.5V@ 5.5A.

The issue is when I charge 4-5 amp batteries at around 1.5 c . Further I think the SMPS costs just Rs 450 hence bargain.
Sai

Clearly, the end use matters. For example, the supply described has a  maximum of 12V available which cannot supply adequate voltage to charge a caddy (Pb) battery. You need at least 15V for this.

QuoteIf one can get by with 5A max.

So if your need is for higher current, it is a very good option. If not, I still feel that the laptop supply is a neat and compact  - albeit costlier - option. Also needs little (change of output plug in some cases) or no modification.

I use a laptop type power-supply for my 50W charger.  Works great !

I used to use a bigger charger/power supply combination for big 6s batteries, but I have since sold that setup (Trex 600 electric heli). Still have the charger with me, do not use it anymore.

Any idea how different is it from this one:

http://rotor.co.in/show-detail.asp?prodid={D3C4B61F-213F-4873-A6CF-8DC11300A4B4}&pn=1

I am looking at a decent NiMH/Lipo charger thats gives me easy of use and peace of mind. I want it work off AC/DC power. I have or will have batteries with the following attached pins. Let me know if I need to make any changes to the leads?