Author Topic: Battery charging in off season.  (Read 3251 times)

7Thunders

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Battery charging in off season.
« on: January 08, 2017, 03:59:53 PM »
Winter here.  we have our battery stored in our basement but its been suggested that we keep it charged.  What kind of charger, Trickle Charger does anyone use? what size? amps? volts etc..... So when we are ready to hit the road its ready to go.
thanks.
Rob & Judi
Northeastern Pennsylvania
16 DBS
Toyota FJ Cruiser

Dan Miller

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Re: Battery charging in off season.
« Reply #1 on: January 09, 2017, 09:53:11 AM »
Maybe some others may chime in here but this is from my personal experience however it is not on an RV, but a Harley Davidson motorcycle.
I have used them for years and many Motorcycle dealers automatically add a connection for them when prepped for sale. I have always stored by bike for the winter and for the last 20 years have used a small maintenance charger to keep the charge and voltage up on the battery.  My experience is that they will last 7-10 years.

Here is a couple of links to some additional information.  Doesn't take much of a charger to maintain a deep cycle battery.
http://campertech.com.au/services/technical-information/
http://www.batterytender.com/float-charging

djmiller - Elkhart Indiana
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wakeboydb

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Re: Battery charging in off season.
« Reply #2 on: January 09, 2017, 10:58:58 AM »
I use the Battery Tender and have done so for years. Never had an issue.
2017 21BHS

ALF

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Re: Battery charging in off season.
« Reply #3 on: January 10, 2017, 08:28:41 PM »
Would there be any downside to simply plugging in my Quicksilver 6.0 for the Winter? It appears as thought he AC-DC converter has a trickle charge mode.

Dan Miller

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Re: Battery charging in off season.
« Reply #4 on: January 11, 2017, 03:08:47 PM »
I would recommend a battery tender type of device. They are very inexpensive and will avoid the wear and tear on the converter and fan.  Also protects your unit from possible power surges when plugged in constantly.
djmiller - Elkhart Indiana
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7Thunders

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Re: Battery charging in off season.
« Reply #5 on: January 15, 2017, 10:04:44 AM »
Thank you... Purchased a Battery Tender Plus, on its way .  Want to maintain my battery in this off season to be prepped for our first trip in April(ish).
Rob & Judi
Northeastern Pennsylvania
16 DBS
Toyota FJ Cruiser

irka-dirka

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Re: Battery charging in off season.
« Reply #6 on: January 23, 2019, 01:25:01 AM »
Id keep it simple and feel like some are overthinking things.
The batteries are wired in parallel but through a switch. If wired in series wed be talking about a 24V system.

Just buy and install a smart trickle charger and if a manual battery Perko type switch just switch to all or both.

A 1 amp trickle charger will overcome any parasitic loads as long as you turn off all accessories and ignition.

Hard wire it to one battery with their plug.

If using a smart isolating relay switch as a combiner then Id just hardwire both batteries to a Y connector plug for the smart charger. It is a $10 accessory. Plug the charger in to the port on the Y.

I buy the battery tender brand products available on amazon.

Hope this helps!

colors of the wind

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Re: Battery charging in off season.
« Reply #7 on: April 12, 2019, 05:38:06 AM »
A battery in good condition will stay charged for many months if you are absolutely sure that there are no parasitic losses. Self discharge of 5% per month is normal.
A trickle charger can hide a weak or failing battery. Or worse, if you have a bank of batteries, a trickle charger can overcharge and damage the good batteries while trying to charge the failing battery. On the RV, I have two batteries and in storage, I leave the master switch off, disconnecting the batteries from everything and from each other. If I were to come back and find one of those batteries discharged . . . I would want to know this so I could replace the failing battery.