Help me choose between Victron IP65 12/15 or 12/25 charger connected to EGU .....

[dhardyuk]

I'm trying to decide between the Victron 12V 15A and 25A mains chargers.

My intention is to install the charger and consumer unit under the bonnet with a Victron 12-12-30 DC-DC charger and have the charger easily removable if I need to use it on another battery. I currently use a piddly 12V 6A charger that does a reasonable but slow job when used to top up the normal starter battery.

There seems to be about £50 difference between the Victron 12/15 and the 12/25 - so the hamster maths in my head is that the pricing works like this:
12/15 about £140 = £9.33 an amp and would deliver 150Ah max in 10 hours.
12/25 about £205 = £8.20 an amp and would deliver 250Ah max in 10 hours - or 150Ah ish in 6 hours

In round numbers the 12/25 could potentially charge nearly twice as fast as the 12/15 and potentially keep step pace with the 12/12-30 DC-DC charger to top up the leisure battery.

Or am I deluding myself and the real world performance of the two chargers is likely to be very similar, in which case the 12/25 is not worth the premium over the 12/15.

I have an SB230AH from Roamer Batteries due to be delivered here on Wednesday next week (Chris rang whilst I was typing Roamer Batteries so that's an excellent omen!) and will be ordering one or other Victron charger on Monday.

Thanks all and have a lovely weekend

 

[Dellmassive]

for that size battery id go for the 25A all day long.

i have the 15 & 25A BSC.

there both great. . . the 25 is physically bigger.

 

[dhardyuk]

Thanks @Dellmassive

Having seen the comparison in your photo I'm going for the 15A. I don't think the 25A will physically fit around the other bits and bobs by the battery in my Caravelle.

I'm working on a Golf GTE socket/badge conversion to put my EHU and a chunky Anderson SB175 connection (for jump leads) through the front grill so I'm making a tiny space saving there v having them by the battery.

Cheers `