JRscooby
Indepmo
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Joined: 06/10/2019
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bgum wrote:KD4UPL wrote:Turn off your battety disconnect and just leave the batteries in the MH. No nred for a charger as there is no discharge. If they won't hold a charge all winter disconnected they need replacing.
I consider this to be incorrect information as they can loose up to 5% charge per month.
How much damage is done, at what % of charge? And how long is winter?
By my limited math skills that would mean still over 80% after 4 months.
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wa8yxm
Davison Michigan (East of Flint)
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Joined: 07/04/2006
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Leave it plugged in? Depends on your converter. MOST modern converters you can do that safely.
Some older (Kind of last century) not such a good idea.
Disconnect when fully charged.. Usually save and by disconnect I mean Disconnect physically at the battery not the USE/STORE or other switch but physically break the connection.
Tender.. that's a good option if you have one of those older battery killer converters.
Fully charged battery is good to around the point where you need not ask C or F.. that's -40 in case you wonder.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
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Campinfan
Washtenaw County, Michigan
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Joined: 05/18/2005
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Great information from all of you. wa8yxm---loved the last line in your post. The motorhome I may be buying next week is a 2019 so I am sure it is a better converter.
______________________
2016 F 350 FX4 4WD,Lariat, 6.7 Diesel
41' 2018 Sandpiper 369 SAQB
Lovely wife and three children
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Flapper
Minnesota
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Joined: 02/18/2012
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bgum wrote:KD4UPL wrote:Turn off your battety disconnect and just leave the batteries in the MH. No nred for a charger as there is no discharge. If they won't hold a charge all winter disconnected they need replacing.
I consider this to be incorrect information as they can loose up to 5% charge per month.
Here;s the chart I trot out, from "Battery University" when the subject comes up:
https://batteryuniversity.com/img/content/storage-web-corrected.jpg
As one can see, the colder the average temp, the longer they can be left before self discharge is a concern. Over the winter in the north, no issue. I'd think hard about long term over the summer in Texas or Arizona, however...
2012 F150 Eco, 4x4, SCrew, Max Tow, HD Payload
2017 Grand Design Imagine 2670MK
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trailmeisterjoe
bothell, wa
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Joined: 12/12/2004
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Years ago I added a Charge Wizzard to the system and it automatically monitors battery health and regularly desulphates them too. RV is pluged in always and have had zero issues for years. My last 4 trojan 6 volts lasted 12 years.
'99 rexhall rexair with 2 slides 32 ft
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