which battery charger (again!)

niccapotamus

New member
Joined
21 Aug 2013
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559
Good morning

Do you mind if I ask the which mains battery charger question?

We have a 30ft sailing boat of 1980's vintage currently with one leisure battery and one domestic battery and a nice old "garage" car charger with flying leads to connect to the battery to charge. As part of our post purchase (probably 5 year!!) rolling upgrade program it is time to move into the 21st century.

Our power requirements are fairly modest (no showers, microwaves etc) but we will upgrade to two domestic batteries over the winter (capacity about 270 AH) plus the engine start battery. We have just fitted an eberspacher and might fit a compressor (depending on how the ice box development goes (also) over the next winter).

So we aren't heavy users but would like when plugged into shore power for 12 hours to be able to leave in the knowledge that we are fully charged and doing a good job for the batteries and build in a bit of capacity for the future. We have currently got a new 135 AH Xplorer™ Deep Cycle Leisure Battery and will add a second.

I believe that we need a charger capable of delivering 20-30 amps and I'd like one permanently connected so we can plug into shore power and charge without the faff of getting to the batteries, getting the lid off the box etc etc.

There is also the need to be happy that we have delivered a nice full charge and the batteries are tip top by the end of the overnight charge. I wouldn't anticpate having to charge the engine start battery as I have just bought a solar panel so the alternator + solar panel should keep this one in good fettle so it is just the domestic bank to charge.

Is there a good supplier I can ask for recommendations or what do you guys think. I'd like the budget to be about £100 unless I get told that we need to spend £200 to get something worthwhile.

Thanks a lot (bloody boats!!)

Nick
 

RichardS

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We have a Victron which has been very reliable for 8 years since the boat was built. It's 40 amp and has separate charging outputs for house batteries and engine batteries so you could easily connect something similar but lower power to both. No idea of cost.

Richard
 

Tranona

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10 Nov 2007
Messages
40,539
Afraid you won't get what you want for £100 - or even £200, but just a bit more (around £230) will get you a proper multistage, multi outlet 20 or 30A charger.
 

niccapotamus

New member
Joined
21 Aug 2013
Messages
559
Thanks - I have read that charger needs to be approx 10% of battery bank capacity plus a bit if we want to cope with some 12v power draw when charging so agreed IOR £200 (sadly) is more of a starting point.
 
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