Lawn mower battery struggles

bt-99

Member
I was just wondering how many of the people on this forum dont do anything with their lawn mower battery when storing it for the season. I dont put a tender on mine. All I do is unhook the negative cable and leave battery in the mower till spring and then I just hook cable back up and start it. I can usually do this for 4 years with no problems and on the 5th year I have to jump or charge it or get a new battery. Also if I do have a dead battery come spring, what amp do most people use to charge up a rider mower battery?
 
I was just wondering how many of the people on this forum dont do anything with their lawn mower battery when storing it for the season.
99.96% I would guess.
I dont put a tender on mine.
You should pull it from the mower and put it in a cozy garage or in the house over winter. Yes you need a tender. Do you like buying batteries more often? Takes about 24 seconds to remove a battery.
Also if I do have a dead battery come spring, what amp do most people use to charge up a rider mower battery?
Roughly an amp is all or less.
 
all lead acid batteries slowly leak electrons internally. A low charge accelerates sulfation on the battery plates. Sulfated plates are what kills batteries about that 3 to 5 year mark. The question is really how much batter capacity is left at 3 to 4 years. Is it enough to do its job. Charging a low battery is also harder on the mower charging system.
 
You need a battery maintainer to keep the electrolyte active in the battery during storage. This prevents sulfation of the plates in the battery. A mower charging system is only meant to maintain a good battery and run the electric PTO clutch if equipped. The charging circuit will overheat and burn itself up if the battery is discharged too much.
 
You need a battery maintainer to keep the electrolyte active in the battery during storage. This prevents sulfation of the plates in the battery. A mower charging system is only meant to maintain a good battery and run the electric PTO clutch if equipped. The charging circuit will overheat and burn itself up if the battery is discharged too much.
Average battery life in mower is 3 years give or take. Most people do little to nothing to maintain or charge their batteries additionally from the charging system on mower. The lower and slower the charge when charging any battery is better. You can read for several hours about batteries until you get a better understanding of them. Batteries are amazing for the job they do.
 
Average battery life in mower is 3 years give or take. Most people do little to nothing to maintain or charge their batteries additionally from the charging system on mower. The lower and slower the charge when charging any battery is better. You can read for several hours about batteries until you get a better understanding of them. Batteries are amazing for the job they do.
I totally agree with you on this. When it comes time to store, all I ever due is unhook negative cable and that's it. I dont even charge it when storing or when starting up in the spring. I just hook black cable back up and it usually starts. This works good for maybe 4 years then on the 5th it wont start so I will jump or charge it and if that doesn't work, I get a new battery. What all do you do when storing your lawn mower battery?
 
Listen to all the above advise - its good.
I have never heard of a "battery tender" - do you mean trickle charger?
I have no less than four battery chargers (diffrent amp's). All of them go to trickle/standby charge, once the battery gets fully toped up.
I never leave my batteries on charge for more than 48 hrs - usually just overnight.
I get cranky if a battery only lasts 5 years - my best to date was 9 years. 😈
 
Hello S.,

Battery Tender is a brand name from what I understand. It is usually a .25A slow battery maintainer (not aggressive like a conventional charger) Just powerful enough to keep the electrolyte active in a lead acid battery (FLA). They do very little good for any other battery design.

I am in South Texas and mostly use milliamp solar panel battery maintainers and the work very well for extending battery life.

Lead sulfation of the battery plates is the biggest enemy of a battery that is left sitting inactive for long periods.
 
Listen to all the above advise - its good.
I have never heard of a "battery tender" - do you mean trickle charger?
I have no less than four battery chargers (diffrent amp's). All of them go to trickle/standby charge, once the battery gets fully toped up.
I never leave my batteries on charge for more than 48 hrs - usually just overnight.
I get cranky if a battery only lasts 5 years - my best to date was 9 years. 😈
 
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