Weight difference in 2ah and 4ah batteries?

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I have an EGO mower (love it!) that came with a 4.0ah battery.  I now would like to buy a cordless blower and use the mower battery in the blower too.  But how much more weight does the bigger battery add to the weight of the blower (compared to what it would weigh with the smaller 2ah battery)?  Will the blower still be manageable with the heavier battery?
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Posted 2 years ago

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I have used a 7.5 Ah battery in the handheld 530 CFM  leafblower. You definitely notice the weight (I find myself switching arms here and there) but it's still manageable. I imagine if you had a strap it would be no problems at all. A 4 AH battery would probably be fine.

Given that the cost of bare tool is almost the same as tool + small battery, I'd recommend just getting the tool with the 2.0 battery, and you could use the 2.0 battery in your lawnmower for a bit of extra runtime if you needed it.
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Blue Angel, Champion

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My buddy uses the 4Ah in his blower all the time and says it's fine.

My use for the blower is so short (for now) that I've never needed the larger battery.