56V 9000mAh Lithium Ion Battery 9.0 Ah High Output Replacement Battery for BA2800 BA1400 BA4200 Compatible with 56V Power Tools

I was hesitant to purchase tge battery with it not being OEM, but was pleasantly surprised with it’s performance. It was fully charged right from the box, and lasted well over an hour of mowing time. The OEMs I have purchased in the past don’t last.

My original battery started to lose life where it could not do the whole lawn(1/4) acre. I bought this battery which has more amps and works great. I can do the lawn twice on one charge. Takes one hour to charge. I have no problems with it yet. The original battery, 7.5 amp lasted about 3 years. I have a EGO lawnmower.

Got the battery and gave it a full charge for a couple of days before use. The first time using it, it worked until there were two lights left and then stopped. Gave it a full charge and used it again a week later. Ran it to see how long it would work but then it wouldn't charge again. Just a red light on the charger and won't charge after several hours at around 70 degrees.Even when the battery worked, the lights on the battery for the charge was different than the charger's while my other batteries work fine and the lights are in synch.I really want to have generic batteries help battery tools be more affordable but mine doesn't work. I'm wondering if it's something wrong with the heat sinks since the root cause seems like it could be overheating but it's 60 degrees in Wisconsin with high grass in the spring.

1. i bought this battery as a backup for a EGO lawn mower and in less than a year it failed. the gauge LED lights turned red and it is not charging. See attached pic2. EGO battery is rated for 7.5 Ah and i can mown 90% of my lawn. this battery is rated for 9 Ah and i can't mown more than 30% of my lawn before it gets discharged.

Purchased in April of '22, worked very well for the entirety of that mowing season. Seemed like a better price than EGO's insanely overpriced batteries. Put it on an EGO Quick charger for 30 minutes each month over the off season. Used it for the first mow this year, seemed like it drained down pretty quick. Put it on the charger again, and the charger lit up like the battery was full, even though the onboard LEDs were showing 25% charge. Drained it the rest of the way down with my Edger (about 5 minutes of use), put it back on the charger. Within 5 minutes the charger was showing fully charged again, while the battery was showing 25%. This is the max charge of the battery now, and my 2.5Ah Ego lasts longer. Completely useless after just one winter. My EGO branded batteries are still working perfectly after 6 full seasons.

I ordered four batteries and two of them did not function at all. But I reached out to the seller and they responded and are working to replace those batteries!!

It's Chinese made so I don't know how long it will hold up but man it just goes and goes on my weed whip. I haven't had to change the battery in 3 weeks now.Be aware that it is significantly heavier than smaller batteries. My 5'-3" 110lb wife would rather change batteries more often than lug this one around.

I've had this battery for about a month. Today was the third time I've used it, but the first time I was really able to test it. I got 35 minutes of run time on my Ego battery. My three year old ego 7.5 Ah battery got 28 minutes. When the Ego battery was new, it got around 45 minutes in the same conditions. Considering this battery is much cheaper, I still feel it was a good value, but it is not likely comparable to the Ego 9 Ah battery.The Ego low battery indicator also does not work with this battery. The battery itself has a power level indicator, but that is hard to see when the battery is installed in the mower.