[starflyte1]

I have a new Ryobi 40v 20 in self propelled mower. It is in the yard ready to go, BUT the battery won't charge, which I think is a problem with some Ryobi batteries.

Ryobi will send me a replacement battery in 10-14 days. Trouble is my mower company stopped mowing three weeks ago and I can't find another person for my small courtyard villa.

So, Ryobi suggested I return the mower, which I plan on doing tomorrow. From what I read, I don't plan on buying another Ryobi, because their 40v
batteries "go to sleep" and I can't deal with that.

I have several Ryobi One + tools and am very happy with them, but very dissatisfied with the 40v.

My question, finally: does anyone have a trouble free 40 volt battery?

I had the smaller walk behind Ryobi One+ walk behind and had no trouble. It seems to be the 40v.

[Michael G.]

I have 40V Kobalt with numerous attachments with no trouble.

Remember you can't leave the batteries/battery in them when not in use.

[BigSteph]

I have two 40v Ryobi batteries. The 2ah is about 3 or 4 years old and never had an issue. The 5ah battery is 6 months old and no issues.

The Ryobi mower is another issue -- I had to remove the safety switches and put in a toggle for the on/off. I still use the momentary switch to fire the unit up, and the toggle for on/off. I bought the mower as a refurb and it failed a few weeks after picking it up for $125 at Tools Direct. A quick YouTube video detailed the problem and $7 later, it was fixed.

Back home, up north, I would charge and store in the garage. Down here, I think it is too hot, so I charge and store in the utility room.

Something I didn't know after years and years of batteries, is that you should let a battery cool off before recharging. For me, the easy thing was to have a battery run down and immediately throw it in a charger. All authorities on the matter say to let the battery cool down, then charge.

Originally Posted by starflyte1

I have a new Ryobi 40v 20 in self propelled mower. It is in the yard ready to go, BUT the battery won't charge, which I think is a problem with some Ryobi batteries.

Ryobi will send me a replacement battery in 10-14 days. Trouble is my mower company stopped mowing three weeks ago and I can't find another person for my small courtyard villa.

So, Ryobi suggested I return the mower, which I plan on doing tomorrow. From what I read, I don't plan on buying another Ryobi, because their 40v
batteries "go to sleep" and I can't deal with that.

I have several Ryobi One + tools and am very happy with them, but very dissatisfied with the 40v.

My question, finally: does anyone have a trouble free 40 volt battery?

I have the smaller walk behind Ryobi One+ walk behind and had no trouble. It seems to be the 40v.

[starflyte1]

Thank you very much for your replies.
I returned the mower today with absolutely no problem at Home Depot.

I spent several hours reading about mowers, and decided to give Ryobi another try. The original mower was a mess when I opened the box. All four wheels had cut thru the box and it had been retaped but not repacked. I feel the battery could have been exchanged. The one I bought today was in a box in perfect condition and the battery was in a plastic bag.

The reason I took the first box that was is bad shape is because I had curbside pickup and did not see the condition until home. Today, I went inside to buy.

[MorTech]

You should charge the battery in a cool place...Like inside the house and not in hot garage.
Keeping the battery cool is key to longevity.

[DAVES]

Originally Posted by MorTech

You should charge the battery in a cool place...Like inside the house and not in hot garage.
Keeping the battery cool is key to longevity.

Like so many things, people do not read or follow instructions. All, higher volt batteries are a pile of cells. For example a 12 volt car battery is lead acid, each cell is 2 volts so a 12 volt batter is 6 cells. You will find there are 5 caps to add water. I don't recall, easy to look up. If lithium ion batteries are 1.5 volts, a 40v battery will be 27 batteries wired together. The point it is only as good as the weakest cell-battery. If, you run it down too far, the stronger cells reverse the polarity on the weakest cell and the battery is done..

With a 40v lawn mower. In say the winter, you put it away and forget to recharge it. The batteries have stand by losses. It can go down too far and it will not recharge.
Companies say so many charge cycles. You will get far less than that if you run it all the way down and far more than that if you do not run it all the way down. Lithium ion batteries do not have a memory as nicads do-there is no need to run them down.