Battery Advice Hymer Nova
Just after some advice on a Battery for my Hymer Nova S 545, it’s under the u shape front seat’s, I have a motor mover, so what is the best leisure battery for a motor mover? The last battery we had was acid type we were very lucky the co2 alarm went off at night terrible gassing smell like rotten eggs
Comments
-
The problem with your lead acid battery was the charging system not the battery type per se. Hydrogen Sulphide smell (rotten eggs) is a dead giveaway that it’s being overcharged. The hydrogen being produced can trigger the carbon monoxide alarm. Both types can be overcharged and sealed/gel battery types are more susceptible to damage from overcharging. You can use easier type. I don’t know about caravans but you’ll find lead acid batteries in some german motorhomes. However, make sure the charging system is working properly and the battery is adequately ventilated.
0 -
Thanks Seaside Bill was it my fault I connected my electric hook up to my 240V in garage as caravan is on drive thinking I could charge battery up now & then over the winter instead of taking battery out & trickle charge it in garage being lazy & naive basically
0 -
I think not, you’re doing nothing other than you’d be doing on site with EHU. A good battery charger won’t overcharge a battery, it’ll just reach a point where it settles into a ‘float’ mode maintaining the battery with a tiny constant voltage, just enough to compensate for any self discharge. If your charger is suspect, it’s worth investing in a good quality replacement.
0 -
Because of the position of the battery. You should really buy a Gel, AGM or possibly a enhanced flood battery EFB. Not a bog standard flooded battery. The charger unit on these have a reputation for failing. But it sounds like yours is over charging rather than not charging.
0 -
While on the subject of batteries I am wondering if we have a problem on our PVC the battery is under the driver seat so cannot get to it without removing the seat it was charging at 13 plus volts on the display now at 12.8 when no 12v in use and drops as each 12v is used to 10v at one point any ideas
0 -
JV, not sure I fully understand your last point, do the volts dwindle to 10v when disconnected from the charger and under load? Are you using solar?
0 -
We are on EHUon Seacroft club site And the volts on the battery readout shows 12.8 volts with no 12v in use when we put any lights on or even flush the toilet the volts drop more as each is in use
The light's have two fluorescent tubes in each (there are five lights) plus an inboard water pump+toilet flush the volts were showing about 13.6 when no 12v in use but now are at as above
Ps it's a 15year old Auto sleeper symbol an experiment to see if OH (and me)can cope 🤔
0 -
Make sure you are sitting down when you get a price for a Gel battery. I think you van would have been fitted with one from new. Our 2015 nova came with a AGM battery. I later fitted a Varta Lfd90? Which is an EFB apparently Bosch do the identical battery rebranded and they claim it safe for habitation areas. The GEL switch is for gel batteries it would seem AGM are best on the normal setting.
0 -
JV, 12.8v sounds ok (assuming that’s not the charging voltage), but should sustain. Volts dropping away to 10v under load isn’t right - suspect a cell is failing or battery is on last legs. An automotive battery place will be able to check it easily enough. I hope the experiment works out ok.
0
