Hi guys I’m getting a Quattro motor mover fitted and I currently have a perfectly good 85ah battery. Do I need to change it for a 110ah as these are much npbigger and my current battery is good.
You do not necessarily need to change the battery not unless the mover is going to be climbing up an incline on the drive where it will exhaust the battery quicker. Basically, to put it into real terms it means that an 85ah battery will provide 85 hours of power before the battery goes flat whereas a 110ah battery will provide 110 hours of power before it goes flat so it just means that the bigger battery has a larger time scale than the smaller one. However, they do advise that the minimum size leisure battery with the use of a motor mover is 100ah battery which is what I use and I haven't had any issues with mine but in saying that my mover is mainly used on a flat stoney surface and grass.
Discounted Insurance Quotes for UKCampsite.co.uk visitors! Up to 12.5% off!
As Tango says it depends very much on what use you intend to put your motor mover to. Light use, short distances, and mainly on the flat, and you should be fine. However, if you intend to use it to propel a heavy caravan up a long steep drive, you may not be.
We have movers on our relatively light caravan and the most we require them to do is move it off our drive into the road. It's slightly uphill but only the length of the caravan so our 110ah leisure battery hardly notices. I would imagine that an 85ah would barely notice either, but I just happen to have a good 110ah one.
This is my thinking… it outputs the same level of power but it won’t last as long. But I’m thinking of moving the caravan about 15 metres on flat ground not sure it would go flat from that.
Quote: Originally posted by Jason Neville on 23/8/2022
This is my thinking… it outputs the same level of power but it won’t last as long. But I’m thinking of moving the caravan about 15 metres on flat ground not sure it would go flat from that.
I very much doubt it, unless it is a really heavy caravan. With an average caravan it should cope easily.
The easiest and most accurate solution to this is to conduct your own test and prove your own theory which is to check the battery voltage with a voltmeter BEFORE the motor mover is powered up and then again when the mover has completed the task of moving the caravan and totally powered down again. Conduct the second test with the voltmeter and see how many volts have been consumed during the total cycle which will then give you a rough judgement of the capabilities of the battery.
Quote: Originally posted by Crypto on 24/8/2022
Just fit the mover first. Then have a few trial runs at home to see how the old battery copes. That is the easiest and most accurate test.
+1
------------- I like children but I can't eat a whole one
The manufacturer recommends a minimum of 85Ah battery, there you go, that's it, it'll work OK!
It'll almost certainly be fine with 'normal' use. Only time you may find you need a bigger battery is if you do off grid camping, and you deplete the battery on other uses during your stay, then you may need the greater reserve of power to power the MM at the end of your stay.
I've moved my van around 100m on uneven gravelly ground with the MM and did a fair bit of shunting back and forth at either end, and it didn't make any impact on my battery charge! It was checked with a sophisticated battery analyser before and after, so any significant discharge would have shown up.
MM puts a heavy load on battery, but only for seconds and minutes at a time in most cases.
The recommendation for a big battery is so that you can spend a week away off grid using lots of battery power in the caravan, then drive a short distance home and use the mover. If you are usually on EHU on site you will have a charged battery so don't need a large one. The mover itself uses very little power as it only works for a relatively short time
I've got a 70 Amp Hr battery and mover and have no problems at all despite having a steep drive. I also have a 100watt solar panel on the roof which keeps the battery charged.