Battery Maintain / B2B ??

[Marauder]

Hi again,

so I'm looking for some brand version advice this time . . .

I need a battery maintainer / trickle charger to keep battery topped up on mains electric while at home long term -
- which is a good model / brand ?

And need to fit a B2b device - which model / brand would you recommend ?

And will I need to know whether I have a 'smart' alternator or not before making a choice ?
.
.

 

[Reallyretired]

As I understand it, a b2b will be fine with any sort of alternator, though is an essential with a smart one to get any sort of charge to house batteries.
Smart seems to be the current euphemism for something that doesn't work properly eg smart motorway.

 

[Revolvor]

I've got one of these. Seems to work well, and CTEK have a good reputation.

Not for Lithium. I have 200Ah battery, and it works fine, despite saying only suitable for 100Ah.

Limited-time deal for Prime Members: CTEK XS 0.8 Battery Charger 12V, Battery Tender Charger, Smart Battery Charger Motorcycle, ATV, JetSki, Watercraft, Lawn Mower, Battery Maintainer, Trickle Charger, Desulfation Mode (UK Model) https://amzn.eu/d/iLaVzmz

 

[the1andonly]

With respect to b2b the 3 main brands are votronics, victron, Stirling size you need to decide 30 50 60A. Also you need to know the main electric box Cbe / electrobloc and how any split charge relay is connected.
There are many threads on here to help. I have the extremely compact votronics 30A, a second can be added if needed 50A version also available
I dont use a mains charger as my votronics mppt controllers keepthe cab battery happy.