Questions on Newly Bought SP 21inches Lawn Mower

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  • Updated 2 years ago
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1) I also bought trimmer which came with 2.5Ah battery, can I use it in Lawn Mower? If yes, how many minutes It can provide?
2) I have SP version, if I do not want to use self propel mode and push it...would it save me some extra battery life?
3)I have total 0.6 Acre, Will 7.5Ah battery will be sufficient to do the job? (grass is rye and not thick, and no weed)

Thank you very much.
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Hemangi Barochia

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Posted 2 years ago

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David Cline

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Official Response
The fact that the mower has a variable power motor means that the grass type and mowing conditions are going to have a HUGE impact on the answers to your questions, as you can see from the responses so far. From page 11 of the mower manual:


So to answer your questions:

1. Yes, but using a 2.0 or 2.5 will reduce the mower's performance slightly in the lightest of conditions, and will only yield about 15-20 minutes at best. In heavier conditions you may only get 5-10 minutes of sub-par mowing, not really enough to recharge your 7.5.

2. The difference is fairly negligible in my experience, but in very light mowing conditions perhaps could extend run time a few minutes. But it would be more like a few seconds if the blade motor is drawing anywhere near its 1000w max in moderate to heavy mowing.

3. I have about 1/4 acre and can finish my yard on a single charge with the battery nearly fully depleted on a good day. I would anticipate needing to recharge the battery at least once per mow on a half acre lot, unless you have lots of unmowed areas (flower beds, house, driveway, etc)