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Availability:
In Stock.
Arrives
Sunday, Oct 25
Style: 7.5 Ah Battery
Features
- Power management system protects the battery pack from the most harmful elements a battery can face from overheating to over-discharging
- Upgraded fuel gauge to show how much run time is remaining
- Fast Charge time: Charges in 60 minutes with EGO Power plus Rapid Charger; Charges in 145 minutes with EGO Power plus Standard Charger
- Compatible with all EGO POWER plus outdoor power equipment and chargers
- 3-year limited warranty
- Power source type: Battery Powered
Description
The 7.5Ah ARC Lithium Battery is now equipped with an upgraded fuel gauge. The new built in indicator lights lets you see how much run time you have left. With 5 segments wrapping the power button, you can now see how much battery power you have left in 20% increments.The ARC Lithium battery technology is the industry’s most advanced; equipped with patented Keep Cool Cell Technology; which keeps the cells cool and prolongs the life of the battery.
Brand: EGO Power+
Battery Cell Composition: Lithium Ion
Battery Capacity: 7.5
Recommended Uses For Product: Power Tool
Unit Count: 1 Count
Brand: EGO Power+
Model Number: BA4200T
Model Name: 56-Volt 7.5 Ah Battery with Upgraded Fuel Gauge
Global Trade Identification Number: 59
UPC: 692042005459 692042011030 653785783653
Manufacturer: EGO Power+
Included Components: Assembly Guide
Battery Cell Type: Lithium Ion
Battery Capacity: 7.5
Voltage: 110 volts
Reusability: Rechargeable
Amperage: 7.5 A
Unit Count: 1 Count
Battery Weight: 6.4 pounds
Item Dimensions: 6 x 7.6 x 4.1 inches
Item Weight: 6.3 pounds
Antenna Location: Power Tool
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 25
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Style: 7.5 Ah Battery
Despite the fact that I have a lot of experience with LiFePo batteries I thought I'd try one of the much cheaper Chinese replacements for the 7.5 AH Ego Power battery. Here's what I learned. The original, now five-year old battery that came with my Ego lawn mower when new was beginning show its age. I was no longer able to mow both front and back yards with just one full charge. Then, the mower's battery indicator would flash red even before finishing just the (larger) backyard. That said, these batteries should last MUCH longer. Current LiFePo chemistry is good enough that we should reasonably expect at least several thousand cycles before reaching a theoretically diminished limit of 80% of original capacity. Unlike older battery chemistries LiFePo battery packs typically deliver a consistent level of energy until nearly exhausted when they suddenly fall off a cliff and the built-in Battery Management System, (BMS) shuts everything down to protect the cells from further damage. So, five years is way short of these typical expected lifetime values. I got about half of what I expected especially when using the Ego Power battery charger. I wouldn't care so much about the failure to deliver the expected performance, but these batteries are not cheap! With this in mind I didn't feel like I owed the Ego Power people my continued business. Going all-electric was supposed to save a few dollars on fuel over the typical gas-powered mower we all grew up with, right? Instead, any savings I was supposed to get by being oh-so cool and environmentally-concerned was wiped out when I only got half of what I expected from the battery. What did I do? First I bought a 6.0 AH Chinese knock-off on Amazon. It looked just like the Ego-branded battery, but slightly smaller in size and weight as expected. I incorrectly assumed that 5-6 years of improving battery technology might work to my advantage and the labeled AH difference might be a wash. Yes, a lower capacity battery module at 6.0 vs. 7.5 Ah, but MUCH cheaper to buy than the equivalent 7.5 AH Ego Power-branded offering. I tested the the 6.0 AH the best way I should: by mowing the lawn! I had to wait a while to allow the grass grow enough to try the battery out. My un-scientific verdict was that this brand new advertised 6.0 AH battery was actually closer to 4.8 - 5.0 AH. Not even close to the advertised 6.0 AH. Thankfully, Amazon was good enough to accept my return even after a few weeks had passed. I've read all the comments about having the proper combination of Ego battery and the Ego charger. But all of these batteries, including the Chinese knock-offs, are assembled with their own built-in BMS's. Fact is, LiFePo batteries could care less about being charged by a special LiFePo charger since the battery's own BMS regulates everything about the charging/discharging process internally. Ultimately, I bit the bullet and forked over for the new Ego Power-branded 7.5 AH battery knowing that while it seems to have the same amount of power I need to do the job, it will probably not last as long as it should. This is an issue which Ego Power and all its competitors need to address. All that said, the durability and overall build quality of all my Ego Power products are excellent. I look forward to trying out whatever new products they come up with.
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Reviewed in the United States on November 27, 2023 by John Thompson
Style: 7.5 Ah Battery
This purchase was to replace a battery that originally came with my ego mower that stopped charging (had for a few years). It holds charge and is reliable. I do like and trust the Ego products.
Reviewed in the United States on September 22, 2026 by Love2Read
Style: 7.5 Ah Battery
The battery is great. However the price for the brand-name unit is insanely expensive. Since I couldn't be sure of the quality of the others, I paid for the expensive one. I could have almost paid for a new lawn mower with battery included for what I paid for a battery.
Reviewed in the United States on October 1, 2026 by A Scott
Style: 7.5 Ah Battery
Works great as extra.
Reviewed in the United States on August 24, 2026 by Joseph B. Powell
Style: 7.5 Ah Battery
These batteries are pricey, and I hope the mower will last longer than my 1st Ego mower that only lasted 3 years and the battery lasted 7 years. My other batteries work but only works about 20 minutes, so used them as back up when power run out on the new battery.
Reviewed in the United States on September 11, 2025 by Stack
Style: 7.5 Ah Battery
These batteries were exactly what I needed to replace my 4 yr old 7.5AH batteries that don't hold a charge for more than 20 minutes. While I would love that they last longer than 4 years, the reduced maintenance for both my snowblower and lawnmower by using electric are what was more desired. These are heavy, but are the exact match and power I needed for all of the heavy snow we got this year already.
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Reviewed in the United States on December 11, 2025 by Busy Dad
Style: 7.5 Ah Battery
My old batteries were over three years old and weren't holding the charge as long as they used to. Granted, my old batteries still last a while, just not as long as I liked. I had two 5 amp batteries and two 7.5 amp batteries. This past fall, one of my 5 amp batteries became bad as one of the batteries failed. I still need to replace the bad battery with out damaging it. Seeing as winter was on it's way and I needed new batteries for my EGO Two Stage snow blower. I decided to purchase these as I'm not yet ready to take a chance and purchase a third party batty which may or may not work the way the EGO batteries work or possibly even fail to work. I found that these new batteries work really good and have plenty of power to them. More power than my old batteries. It seems you can notice the diffence when using my snowblower. I just wish the price of these would become more affordable as being low income, these create a big hole in your pocket what with the cost. I enjoy using EGO products and the best thing is the batteries are interchangeable. Have the builtin battery meter helps too. Then again, my old 7.5 amp batteries were of the same type.
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Reviewed in the United States on February 13, 2024 by Renegade Rebel
Style: 7.5 Ah Battery
I haven't used the batteries yet. I do have similar batteries currently and they are fantastic. I have a long driveway and bought these as extras for heavier storms. So I am hoping for the same experience with these new ones. But I am leaving 5 stars here for the seller - Jack's small engines - for how prompt they were about responding to some of my questions about the shipment.
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Reviewed in the United States on January 30, 2026 by Dheeraj Remella