Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
Old 11-25-2016, 05:36 PM   #1
Senior Member
 
mlangdn's Avatar
 
Join Date: Mar 2014
Location: Western Kentucky
Posts: 299
Can I charge a lawn mower battery?

I was just curious - can I disconnect my battery, and plug in another 12v battery and charge it? I do need to charge a 12v lawn mower battery that I use for other applications - like blowing up an air mattress when the grandkids are staying.
__________________
2014 Coachmen Catalina
243RBS 50th Anniversary
2013 F250 Lariat 6.7 Powerstroke
mlangdn is offline   Reply With Quote
Old 11-25-2016, 05:40 PM   #2
Senior Member
 
Ford Idaho's Avatar
 
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
I see no reason why not.

A cheap battery charger?

Cost you a Jackson at Sears.com

https://www.googleadservices.com/pag...uxcIwgE&adurl=
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
Ford Idaho is offline   Reply With Quote
Old 11-25-2016, 05:48 PM   #3
Senior Member
 
Join Date: Feb 2014
Location: Ontario
Posts: 1,172
All depends where you are going to swap the batteries , either in the tow veh or the trailer. In the trailer, no problem, in the truck you are going to have a hard time to start the truck to get it to charge with a dead lawn mower battery in it. As ford said go get a cheap battery charger and save a lot of hassle.
__________________
2014 Forester 3051s
2016 Nissan Pathfinder SL
2012 Sonic toad
wana65stang is offline   Reply With Quote
Old 11-25-2016, 06:44 PM   #4
Mod free 5er
 
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,705
Should be able to just hook up a 12v + & - to the lawn mower battery without unhooking the rv battery and get it charged.
__________________
OldCoot is offline   Reply With Quote
Old 11-25-2016, 07:00 PM   #5
Cyber Phrenologist
 
Radio's Avatar
 
Join Date: Jun 2007
Location: Fayetteville, GA
Posts: 1,792
A few minutes charging from a vehicle with jumper cables would be the easiest, IMHO.

As stated any cheap charger will charge a lawn mower battery. They can be charged, after all, the mower charges the battery as it goes along.
__________________
KU4OJ
Admin at www.openroadsradio.net, part of the Social Knowledge network.
"RVing and Amateur Radio served up on the same plate"
2008 (or is it 2009?) Rockwood 8280SS - 2007 F-150
Lot's of mostly Kenwood radios

Radio is offline   Reply With Quote
Old 11-25-2016, 07:16 PM   #6
Senior Member
 
Join Date: Mar 2014
Location: Mountain Foothills of Southern Alberta
Posts: 1,471
Small batteries like a low amp charge between 2 amps to 6 amps (max). I would buy a cheap low amp charger to do the job.
__________________

2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank (Two-GC2) - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting
2009 F150 - 5.4 Litre - Tow Package
Boon Docking 99% of the time.
boondocking is offline   Reply With Quote
Old 11-26-2016, 03:41 AM   #7
Senior Member
 
mlangdn's Avatar
 
Join Date: Mar 2014
Location: Western Kentucky
Posts: 299
Thanks all - I believe I'll go to Wal-Mart!
__________________
2014 Coachmen Catalina
243RBS 50th Anniversary
2013 F250 Lariat 6.7 Powerstroke
mlangdn is offline   Reply With Quote
Old 11-26-2016, 03:06 PM   #8
Recently new!
 
Paulie1138's Avatar
 
Join Date: Dec 2014
Location: Arizona, in The Land of Scorch!
Posts: 1,166
Send a message via AIM to Paulie1138
Charrrrge ittttt

Same as Old Coot. Just use some jumpers or clip leads and leave it like that for a while. Just remember, - to -, + to +..... Otherwise watch the sparks fly!
__________________
1987 Starcraft Nova tent trailer, purch. '87, sold 8.14
2013 Crusader 290RLT bought new, 8.14 lotsa mods!
2001 Ford F-250 7.3
Loving wife, R.I.P., 6/6/19
and Mason the always dirty dog! R.I.P, 2/19
Paulie1138 is offline   Reply With Quote
Old 11-26-2016, 04:03 PM   #9
Senior Member
 
Join Date: Mar 2014
Location: Mountain Foothills of Southern Alberta
Posts: 1,471
Not a good idea. If your lawnmower battery is dead you could destroy it with the excessive amperage from the RV/vehicle battery. That is why there are different amperage settings on battery chargers.
__________________

2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank (Two-GC2) - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting
2009 F150 - 5.4 Litre - Tow Package
Boon Docking 99% of the time.
boondocking is offline   Reply With Quote
Old 11-26-2016, 04:12 PM   #10
Senior Member
 
sfsgm's Avatar
 
Join Date: Feb 2015
Posts: 391
Be careful at Wal-Mart. They have a lawnmower battery there that has ZERO warranty. If you buy it and get homeland does not work, they wont replace it.
__________________
2016 Nike Take Down Wrestling Shoes
42 ft square Dollamur high school wrestling mat
sfsgm is offline   Reply With Quote
Old 11-26-2016, 04:35 PM   #11
Senior Member
 
Ford Idaho's Avatar
 
Join Date: Sep 2013
Location: Idaho
Posts: 9,839
Quote:
Originally Posted by sfsgm View Post
Be careful at Wal-Mart. They have a lawnmower battery there that has ZERO warranty. If you buy it and get homeland does not work, they wont replace it.
Understatement of the century!

/
__________________
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping
Ford Idaho is offline   Reply With Quote
Old 11-26-2016, 04:53 PM   #12
Site Team
 
Flybob's Avatar
 
Join Date: Oct 2014
Posts: 12,636
You should not charge ( or discharge) batteries of significantly different capacity, age or condition in parallel. You can damage one or both.
Get something like this: https://www.amazon.com/Schumacher-SE...attery+charger
__________________

2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
Flybob is offline   Reply With Quote
Old 11-26-2016, 05:32 PM   #13
larryandamy
 
Join Date: Apr 2016
Location: Escondido, CA
Posts: 143
Can I charge a lawn mower battery?

Yes you can... There is no technical reason as long as they are 12VDC batteries.
BUT seams like a hassle to me.
You could use jumper cables and you do not have to unhook your house battery.

But a better solution is just buying a charger. I like the smart low current chargers like they sell at Costco for $39, but it is now on sale for $29.
These take a long time to charge but they will never "toast" a battery with overcharging. See link below:

Battery Tender Power Plus 3 Amp Charger

These are microprocessor controlled and can be hooked up continuously... for months and it actually extends the life of your battery by cycling them to optimize battery life. I leave one on my boat batteries whenever the boat is not in use... which is about 360 days a year.

The only negative to this type of charger is if you are in a hurry. Charging your lawn mower battery could take several hours (2 to 4).
Then you want an 8 to 10 amp charger. But most of these will over charge if you leave them hooked up over night or longer. Over charging boils out battery fluid (water/acid) and will shorten life of GSM or gell batteries if you leave them on too long.
larryandamy is offline   Reply With Quote
Old 11-26-2016, 07:09 PM   #14
Senior Member
 
Join Date: Jun 2012
Posts: 10,907
Quote:
Originally Posted by sfsgm View Post
Be careful at Wal-Mart. They have a lawnmower battery there that has ZERO warranty. If you buy it and get homeland does not work, they wont replace it.
I think he was going to Walmart for the charger. He seems to already have the battery.
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
rockfordroo is offline   Reply With Quote
Old 11-26-2016, 09:01 PM   #15
Pickin', Campin', Mason
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 14,112
Quote:
Originally Posted by sfsgm View Post
Be careful at Wal-Mart. They have a lawnmower battery there that has ZERO warranty. If you buy it and get homeland does not work, they wont replace it.
I just checked at our local Walmart and all lawn and garden batteries have at least a 90 day warranty, even the $19.99 model. Not sure what you were referring to? Even checked Walmart.com and don't see anything listed without a 90 day warranty.
__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck B&W Companion
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '18=51 '19=58 '20=110 '21=94
5picker is online now   Reply With Quote
Old 11-26-2016, 09:48 PM   #16
Senior Member
 
ChipBruce's Avatar
 
Join Date: Jan 2015
Posts: 309
Sad, when people hating on
Wal-Mart. Shedding a tear in Kansas City, MO!
__________________
Chip Bruce, RPh
Kansas City, MO


ChipBruce is offline   Reply With Quote
Old 11-27-2016, 10:00 AM   #17
Recently new!
 
Paulie1138's Avatar
 
Join Date: Dec 2014
Location: Arizona, in The Land of Scorch!
Posts: 1,166
Send a message via AIM to Paulie1138
Charrrrge tttt

Yes, you can charge across with another battery with the method I described. By using clip leads, or any small gauge jumper wires (18 ga or smaller), and keeping an eye on timing and voltage. The small wire will be self limiting on current. Voltage will have to be checked after the battery is disconnected a few hours and with a moderate load. I have just let it charge for 4 to 6 hours, and am usually good.

I will agree, the best way is to get a small charger, or place a regular charger onto the 2 amp or trickle charge setting for small batteries for a day or so. If you are going to buy a charger, then get a battery minder, smart charger, or the like. That way, it can be used for charging the smaller battery, and when you put your rig or car in storage.
__________________
1987 Starcraft Nova tent trailer, purch. '87, sold 8.14
2013 Crusader 290RLT bought new, 8.14 lotsa mods!
2001 Ford F-250 7.3
Loving wife, R.I.P., 6/6/19
and Mason the always dirty dog! R.I.P, 2/19
Paulie1138 is offline   Reply With Quote
Reply

Tags
battery

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 05:11 PM.