Ctek charger 3.6 amp

[mick]

I have a service bank of two connected 86ah batteries. Will this small charger be able to keep the batteries topped up?

 

[sarabande]

There's a world of difference between charging from really low, to maintenance.

I reckon you need to MSX 7 or 10 to be able to take care of a big charging demand. If you can guarantee just topping up, then the MSX 5 might just about suffice, but a 7 would be certain.

 

[nigelmercier]

There's a world of difference between charging from really low, to maintenance.

Quite so, the recommended capacity for a charger is between 10% and 20% of the total Ah, so 20A would be a minimum for the OP's almost 200Ah. For keeping them topped up when not in use, any smart charger will do.

 

[VicS]

Ctek give guidance on the size of battery each of their chargers is suitable for, both for charging and for maintenance, on their website. http://www.ctek.com/gb/en/chargers/12v

The 3.6 amp charger is sutable for battereis up to 75Ah , or 120Ah for mainennce

The 7 amp charger is sutable for batteries up to 150Ah or 225Ah for maintenance

The 10 amp charger is suitable for batteries up to 200Ah or 300Ah for maintenece.


It must of course be remembered that in each case the recharging time for the larger batteries in each range will be quite prolonged and I personally would be inclined to lean more towards Nigel's rule of thumb above to keep recharging times down to a realistic level

 

[mick]

Thanks, everyone. It looks as if I'll be ordering the 10amp.