Accucell 6 slow charging?

[Kinninvie]

My Accucell 6 is set to charge at 6A but when I start to charge its only putting 2A out.
Its the same whether powered by a 5A mains charger (I realise this would be its maximum from this) or by a fully charged car battery.
Its charging a Multistar 16Ah battery and both discharge and balance leads are connected.
I will be converting a pc power supply in the near future to use but just wondered if I was doing something wrong.
Its set to LiPo and 16Ah and is reading the correct 6s.

 

[KirstinS]

I'll wager the issue is your power supply. You cannot expect, for example, a12v 5a psu to charge a 22,2v battery at 6a. You need to consider the voltage as well as amps of psu as the charger can, in effect, convert one to the other

From memory the accucel 6 can take up to 18v psu so to charge a 22.2v at 6a you'd need a 18v 10a psu

 

[KirstinS]

I think charging at 6a will significantly reduce life expectancy of the cells . Prob best to keep under 3a if you care about such things !

 

[Kinninvie]

I did say that in my post above.
I have now made a 400W power supply and its still the same BUT I think I may have it sussed.
The battery is currently at 25.12 and will stop at 25.2 so is probably in the low final stage.
I just hope I can get both batterys charged in less than 6 hours when I get round to using them

 

[Kinninvie]

Charging at the recommended 1C would be 16A so I figured 6 would be quite ok for long cell life.

 

[Kinninvie]

From memory the accucel 6 can take up to 18v psu so to charge a 22.2v at 6a you'd need a 18v 10a psu

It takes between 11 and 17 volts input.
12 volt is recommended so I dont think extra volts will alter the output.
The first battery has now finished and gradually the charger went down to 0.4A so I reckon it must just be because the battery was fairly full.
Hopefully I will get the chance to discharge them on the bike tomorrow(if my Anderson connector turns up) so then I will find out for sure.

 

[KirstinS]

Didn't realise they were near full - your right, the taper charge at the end can be painfully slow