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Ego Power+ 56V 4.0 Ah ARC Lithium-Ion Battery, $189 (was $279)
Why do we like this deal?
When even the President says high gas prices will last until mid-November this year, you know it’s going to be a tough summer for your old gas mower. That’s why one of the hottest deals on lawn and garden equipment this season is the 56V lawn mower from Ego Power+, which uses an extremely powerful battery to cut the grass fast. If you’re with Ego and want to expand your battery system, now’s a great time to do so – there’s now 32% off a compatible battery for the same mower (and the brand’s other 56V tools).
The Ego Power+ 56V 4.0 Ah ARC Lithium-Ion Battery is now only $189. And the best part is that Walmart will even ship it to you fast and for free. For example, I’m personally looking at a shipping time of 2 days to get it to my home. And this is quite important, because batteries do not perform well when exposed to heat for long periods of time.
EGO Power+ 56V 4.0Ah ARC Lithium-Ion Battery, $189 at Walmart (was $279)

What shoppers need to know
- Voltage: 56V
- Capacity: 4.0 Ah
- Compatibility: Ego Power+ 56V tools, including its powerful lawn tools.
- Best use case: This is a great way to beat the pump while taking care of your yard tasks this summer.
Let me focus on physics for about two minutes, and you’ll see how awesome this battery is. It’s a 56V battery, which is pretty high on the power scale, and the average capacity sits at 4.0 Ah. If you multiply those two numbers together, you get 224Wh, which is the total energy capacity of the battery in watt-hours. Or, as I like to call it, “battery juice.”
And comparatively speaking, that’s a lot of juice for a lot of money.
Typically, even in really good deals, batteries cost around $1 per watt-hour. And this is true from recent sales ranging from the smaller Milwaukee and Makita batteries I covered to the giant Milwaukee battery I covered last month. That said, even $200 would be a good price for this battery. At only $189, it’s a bargain.
RELATED: HVAC Techs Recommend This $300 Ductless Air Conditioning Unit from Walmart for Summer
what shoppers are saying
How do buyers generally judge the quality of this battery? Exactly, it appears. One shopper used it with the 21-inch mower mentioned above and reported, “I had about an hour of power to get things done in my backyard.”
The Ego Power+ 56V 4.0 Ah ARC Lithium-Ion Battery costs $189 right now – according to my own math, that’s a pretty low price – and ships free.
SHOP MORE FROM EGO POWER+
- EGO 15-inch Powerload String Trimmer, $170 at Walmart (was $199)
- Ego 18-inch Cordless Chain Saw Kit, $325 at Walmart (was $400)
- Ego 21-inch Lawn Mower Kit with 6Ah Battery and 320W Charger, $584 at Walmart