Mower Battery Run Time Suddenly Less Than 15 Minutes

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  • Updated 4 years ago
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This conversation has been merged. Please reference the main conversation: Short run time on mower

I have had the mower for the current mowing season and have been reasonably satisfied with the battery life per charge.  Today, I have had the mower quit after about fifteen minutes twice now.  (battery is charging as I type this)  This is a much shorter run time than any times before.  I was singing the praises of this mower and would like to continue to do that.  I have also noticed that the battery goes from green to dead - no warning red light today.  Thank you.  Battery is charged, so I am going back to mow, hopefully for a longer time than the last.
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Dan

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Posted 4 years ago

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Wayne

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Is your blade good and sharp? A sharp blade makes a huge difference in run time.
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David Cline

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My grass is growing really fast right now, so even with a sharp blade I will have trouble mowing if I let it go more than 4-5 days. But I can hear the blade slow down when I hit a thick patch, and will eventually see the light start flashing orange. I would definitely give customer service a call, especially if you aren't seeing any signs that the mower is struggling while mowing.

Also, I have often seen my 2Ah battery die (flashing red) without ever seeing the low battery warning (solid red), but my 4Ah battery has never once done this, no matter how bad the mowing conditions are. Sounds to me like something may be wrong with your battery.

Make sure you have all of your equipment registered and then give customer service a call to troubleshoot and get a replacement if necessary.
(Edited)
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Dan

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Thanks to both Wayne and David for those speedy replies and good advice.  What it turned out to be is that grass was accumulating in the mower's undercarriage.  The grass was not wet.  It was the humidity, I think.  I don't mow when the grass is wet, but it was very humid yesterday.  I typically check for accumulation every other mow, but did not this time until this happened.  I will check every mow from now on.  Hey, anyone know if/when the new super-duty battery is coming out?  I hope the price is customer-friendly.  I really have enjoyed this mower so far.  First mower that I have ever washed with soap and water.  Thanks again for the support.  This on-line community is a great resource.
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David Cline

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That will definitely kill the battery (and dramatically reduce performance)!

I just discovered a great tool for routine cleaning without water:

Heavy-Duty Industrial Strength Scour Pad
http://thd.co/1Gem1wp
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Ken, Champion

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The 7.5 Ah battery is already out. $380 at Home Depot, $337 at Zoro.com. Personally, I'm waiting for Zoro to have a flash sale, which will knock it down to around $235.
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Dan

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Thanks for that news.  I had no idea.

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