I will be at the meet on Friday night if you wanted to have a chat and could sit down with some bits of paper and calculations. Usually easier then just words?
I am heading back home tomorrow Dave and my next meet is Hollingworth Lake mid November so won’t be able to have a chat unfortunately.I will be at the meet on Friday night if you wanted to have a chat and could sit down with some bits of paper and calculations. Usually easier then just words?
I meant hollingworth lake but I have my dates mixed up! I thought it was next weekend. Opps.I am heading back home tomorrow Dave and my next meet is Hollingworth Lake mid November so won’t be able to have a chat unfortunately.
I need a method of charging when staying off grid and my solar isn’t doing it on overcast days. For wandering round I foresee an hour or two driving times as a norm so not sure if a B2B is an option for me either. I do have compressor fridge and diesel heating so use more power than a lot but very happy with both of these. I have found some bulbs I thought were led that aren’t so can save a bit by changing those once I figure out how to get in them but it keeps coming back round to either EHU or a gennie to be sure in winter
Worth checking out some uTube video's, specifically from Sterling Power - they provide some great and simple to understand utube videos on Battery to Battery Chargers. I have a 60 Amp BtoB fitted to my van (Lithium 12volt batteries) and it works really well. When wild camping off grid I only have to run the engine for half an hour or so and I get plenty of charge back into the batteries.I know Del has posted asking about makes but my question is a bit different so thought it best to start a new thread.
I think I know what a B2B is supposed to do but not certain I know all the pros and cons so can you explain please? Also is the fitting explained on the instructions the ‘best’ way to fit?
Also my Sprinter could have a 90ah, 120ah or 200ah alternator, that is if it is original. What should I expect from each of those?
I have similar experiences with Lithium, B2B does the job in less than 1 hour. The difference is that Lithium will accept the full charging rate until full, no tailing off as voltage rises. Unfortunately not a cheap solution.Worth checking out some uTube video's, specifically from Sterling Power - they provide some great and simple to understand utube videos on Battery to Battery Chargers. I have a 60 Amp BtoB fitted to my van (Lithium 12volt batteries) and it works really well. When wild camping off grid I only have to run the engine for half an hour or so and I get plenty of charge back into the batteries.
No a smart alternator is one that saves fuel and emissions by turning itself down when the engine battery is full. I believe it also turns down if extra power is needed e.g. to get up a steep hill and works hardest when you are slowing down. Or something like that, basically a big alternator could be using 4bhp (I read that somewhere) so it makes sense to reduce that load if it is not needed. The problem arises for motorhomes because although the engine battery is full when it drops off, the leisure battery may not be. A B2B overcomes this problem, as well as boosting and regulating the leisure battery’s charging.It's ringing bells with me that you can upgrade the cabling from your alternator to enable it to push out far more than the usual amount when you're driving. Is this what you mean by a smart alternator or is that something that does the same sort of thing without changing the cables?
As ever, my usual disclaimer about knowing nothing, Jon Snow
I have the smart solar Victron controller but I also bought a Nasa BM1 to monitor the batteries, so I will be able to check on solar harvesting and consumption.Not sure if your Victron controller has an output to trickle charge starter battery like the Votronic I used does Eric. If not it may have a load output that you could connect but wait for someone with a Victron to reply. Your solar will be separate to the EBL itself so you wont see what is being harvested on Schaudt control panel. I got round that by fitting a display that shows me what solar is doing, you may be able to see yours on your phone depending which a Victron you have.
All I did was run cable from solar controller to positive lead for starter battery on a EBL, but my controller has an output for starter battery charging.
Just to answer the Solar Question:Read all the previous posts and followed them with interest, I sort of understand the charging regimes required to maintain starter and leisure battery condition but don’t know how to apply it to my own setup. I will have shortly 200 watt solar feeding through a Victron solar controller into two x 100ah batteries. Also connected to these batteries is the Electobloc EBL99. The solar will keep the leisure batteries charged sun permitting but what do I need to add to ensure that when the engine is running the starter battery can be charged to it’s capacity, as I understand from Wildebus’s posts the alternator output will not do this, so I presume the leisure batteries will also not be charged fully for the same reason.
Despite the fact that the alternator on my 2008 Ford Transit may not be fully charging the batteries I am sure that the starter battery was the original battery when I had the drivers seat off last year.
Apologies if my explanation seems a bit disjointed but still trying to get my head round motorhome electrics.
Would appreciate advice on how to get the best out of my system as it will all be new as I will have added solar panels and controller, replaced my leisure batteries and will be replacing my starter battery shortly, only the EBL unit will be original.