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Truth Seeker
Picture of StorminNormin
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I think it all comes down to how your care for the batteries. I need to buy new batteries or just new cordless drill as my batteries are toast, but I didn’t know how to care for them when I got them and now there are better voltage.

When I bought all of my Ryobi lawn equipment and realized the freaking battery was probably 80% of the cost of the device, I took taking care of the batteries seriously and have had no issues for years.

I keep the battery chargers and batteries inside my house and remove the batteries from the charger as soon as they are charged. If they sit for a long time and get close to 50%, I recharge them and take them off the charger. The batteries are always kept in the house to be at a good temperature.

I just kept my drill batteries constantly on the charger in my garage in Texas heat as I didn’t know any better back then.




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Posts: 9320 | Location: The Lone Star State | Registered: July 07, 2008Reply With QuoteReport This Post
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quote:
Originally posted by smlsig:
Yes!

Like you I’m not happy with the price of tool batteries. I am in the DeWalt family so last year I decided to take a chance and pick up some batteries off EBay. They lasted about 2 months before they died. Not worth it, unfortunately.
.
I am a fan of Dewalt. Tried a number of after market batteries and was not happy with any of them. Billy
 
Posts: 307 | Location: SE Georgia | Registered: December 25, 2014Reply With QuoteReport This Post
Truth Seeker
Picture of StorminNormin
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quote:
Originally posted by armored:
One big problem with these batteries is actually knowing what is factory and what is a knock off.
I own Milwaukee M18 tools and batteries. I bought the battery's with chargers and batterys at the time of purchase.
I'm a home user and many of the tools I bought are for outdoor tools like trimmers and chain saw, weed whackers and assorted heads that fit the system.
Recently I have had trouble getting the batteries to take a full charge. After investigating the problem it appears that the built in battery maintenance system is the problem, a required system for any Lithium battery. The fix is to take the battery apart and check the charge of all the cells, then bring the low cells voltage up to be close to the other cells.
This is crazy that this is what I need to do. These batteries are not cheap. The 18v, 12amp battery I have for the chainsaw cost $250+ not a throw away.
I see Dewalt adaptors that will convert Dewalt to Milwaukee 18v. Apparently the Dewalt battery maintenance circuits are better than Milwaukee.

My garage is full of old power tools that I gave up on. I may have to re-think my power tools and go back to the corded tools or the, heaven forbid, battle of the 2 cycle powered stuff.
If I was making a living with battery powered tools it might be worth biting the bullet and continuing to buy new batteries when they fail. As a home owner the cost is getting too much to want to deal with to replace these expensive batteries.

Almost all my neighbors use landscaping services. I listen to the roar of gas powered engines all day long. There is certainly a reason why they have not converted to an electric fleet of lawn care tools.


I think lawn companies do it just because they do so many houses and don’t have a way to recharge. When I am cutting a lot of wood with my Ryobi electric chainsaw, I have 4 batteries. I have one fast charger and one regular. When one battery goes out, I put it on the charger and by the time the next one goes out, the other is charged.

If I did landscaping, I would have 12 volt car batteries connected to a power inverter to charge while having no access to an electrical outlet. Then at night, I would recharge the car batteries for the next day.

This is how I powered surveillance equipment in the freaking middle of nowhere back in the 90’s. I had a waterproof tub with two car batteries connected together to a power inverter to power the time-lapse VCR in the tub and to power the cameras I hid in trees. Every three days at 3am me and an FBI agent would go swap out the batteries to charge, grab the VHS tape, and put a new one in. No one could figure out how to do this type of surveillance and were shocked when I came up with the idea. Case was solved.




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Posts: 9320 | Location: The Lone Star State | Registered: July 07, 2008Reply With QuoteReport This Post
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Bought eBay knock offs for old porter cable tools. The knock offs I bought are junk. The 20 year old OEM batteries are work just well.


“That’s what.” - She
 
Posts: 494 | Location: Kentucky | Registered: June 06, 2021Reply With QuoteReport This Post
I Am The Walrus
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Check Facebook marketplace, many people there selling batteries. Some buy them during specials such as buy this, get that free and sell the free stuff they didn’t want.

I’m a Milwaukee system user and have bought batteries from Facebook marketplace and pawnshops for good prices.


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Posts: 13440 | Registered: March 12, 2005Reply With QuoteReport This Post
Ducatista
Picture of rainman64
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I bought an EGO and a knock off at the same time on Amazon.

So far the knock off is the same, time will tell.


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Posts: 5120 | Location: Dallas, TX | Registered: April 14, 2008Reply With QuoteReport This Post
Not really from Vienna
Picture of arfmel
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Just a heads up: there are fake Dewalt batteries being sold on eBay and Amazon. They look just like real ones but weigh less and give less run time than genuine ones.
 
Posts: 27480 | Location: SW of Hovey, Texa’s | Registered: January 30, 2007Reply With QuoteReport This Post
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Picture of shikemd
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quote:
Originally posted by StorminNormin:
If they sit for a long time and get close to 50%, I recharge them and take them off the charger. The batteries are always kept in the house to be at a good temperature.


Great idea keeping batteries indoors, not very hot or very cold. As to the charge state though, 50% is where you want it for long term storage of lithium. I've seen batteries (DJI) that, if unused for a set period (default is 10 days), will discharge themselves down to 50%. If you're going to do this with something unused for half the year (i.e. lawn mower) you probably ought to check every couple months and recharge to 50% as necessary. Read more here.
 
Posts: 965 | Location: The only state with a state bird named after another state. | Registered: December 11, 2009Reply With QuoteReport This Post
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Buy once, cry once with OEM. JMHO, YMMV.

I have DeWalt 20V tools, and all my batteries are DeWalt. About half came with a new tool when purchased, but I have also bought some used batteries from eBay and extra new batteries from Walmart. I'm just a homeowner, so I don't use these every day.

One thing about DeWalt batteries - I had (2) 5.0 AH that wouldn't take or hold a charge. I contacted DeWalt and found out that they were still within a warranty period. All I had to do was upload some photos of the front and back and fill out an online form. Within a week I had 2 replacement batteries.
 
Posts: 606 | Location: Middle Alabama | Registered: February 27, 2010Reply With QuoteReport This Post
Optimistic Cynic
Picture of architect
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quote:
There is certainly a reason why they have not converted to a electric fleet of lawn care tools.
Yes. The reason is that time == money, and gas equipment can be "recharged" in just a few minutes even if you have to mix up a fresh batch of gas+oil.

For home use, when a single charge is sufficient for a day's use in most cases, battery operated is a clear win.

WRT to refreshing battery packs, most of these use readily available, and inexpensive LI cells that are easily replaced. Most semi-handy folks can handle the job. The complication comes with the battery management electronics, these can frustrate repair efforts. IME, the cells themselves are far more likely to short rather than wear out/not take a charge. The effect is, practically speaking, the same (the whole pack goes "bad") but much easier to diagnose individual bad cells.
 
Posts: 7253 | Location: NoVA | Registered: July 22, 2009Reply With QuoteReport This Post
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