20 inch vs 21 for mulching?

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I own the 20'' mower with a 4ah battery. I got the combo with the string trimmer. Now they have the string trimmer with the rapid reload head and the 21'' comes with the 5ah. I am considering returning mine and getting the 21'' and the 15'' string trimmer with rapid reload.

All in all it will cost me approximately $200 more to make this swap. My question is, will it be worth it? Does the 21'' mower mulch any WORSE than the 20'' due to reduced RPMs? Need to decide if the larger mower, larger batt and rapid reload head on the string trimmer are worth an extra $200 over my current gear.
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John D

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Posted 1 year ago

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Pete Innes

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I have the 21" self propelled mower and the rapid reload head trimmer. They are both awesome. The 7.5 ah battery lasts between 1 and 1.25 hours on the mower and the trimmer came with a 2.5 ah which lasts long enough. I'd go for it if I was you
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Blue Angel, Champion

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John, people who've used both will sometimes say the 20" mulched better.

For $200 I don't think it's worth it. If the 4Ah battery is serving you well the 5Ah isn't going to make your life any better.

The RR head is a matter of preference; it's a bit heavier and bulkier but it is easier to load. I have the original head like yours and only need to load it once per year or so, no big deal to me so I'll keep the lighter weight.