Why do some generic lithium batteries for makita tools not fade-free cold stop, but fade after slowing down in power, hurting life of battery?
931342
The Makita manual for the 18v cordless tools warning the user *not the run battery down to the point of the tool stopping. The result is a depleted battery with a battery chip full of data that will be rejected by the Makita charger...
931343
Robert I have both and sensed it happening on both, Makita and the generic brand, I seldom use the tool long enough at any one time to find it a problem. My Makita is a 3 year old drill, the replacement generic battery is two year old. I have a Milwaukie with a lion and it just stops dead, but it does slow just for a second. I have used it for a couple years with 2 batteries. It is the 12v multitool. As to the life of the battery, I am on the originals.
931344
I don't know. What I do know is that one of the replacement batteries I purchased has already quit recharging. The other one is still doing fine. One of my OEM Makita's is still doing fine too (and that's 6 years later). You take a chance either way.
931345
My thought is that the battery controllers are not as quality as the OE controller. With the cheap batteries you must use your brain and not run them down till they are totally flat.
1439841
They're not Lithium or NiMH batteries, they are rechargeable "Li-ion" batteries. Big difference between Lithium and Li-ion.
1733671
The description states that the cells are made in Japan is all. If this is true then they should be quality cells. Also lithium batteries last nearly forever if they are stored at about 40% of charge. It is the number charge/discharge cycles which slowly shorten it's life. Also don't believe the mah rating. After market manufacturers simply lie about a battery's capacity because who is going to pay to do the testing and hire the lawyers to challenge them. If a lithium battery is about the same size, weight and price it is about the same capacity.
466254
I didn't do any scientific measurement. My opnion is therefore subjecive. It appears that these batteries do last. This key is to get them fresh. Batteries do lose power with time if you let them sit. Some lithium button batteries that I purchased on e-bay were two years old and lasted about a week in my guitar tuner, which is way too short. I blame it on the age of the batteries. Those 9 volt lithium batteries don't seem to have this issue. We'll see in a few years.
1444054
I don't trust Makita's battery technology. I had one that failed and then they were awkward about replacing it , do I gave up. I would describe my use of the battery as normal. At the prices they charge, Mskita should be ashamed of themselves.
2093660
These are just "sealed" lead-acid, which in some ways is better than a "deep cycle". Standard lead-acid batteries (like the ones used in the cars we drive) are designed to produce a a maximum amount of amps, but once you drain them below, lets say, 40% charge they find it harder to recover to 100%. Deep cycle batteries are designed to discharge slower and longer; draining them slowly to 10% charge does little to effect their recovery to 100% as-long-as their of a decent quality. On the other side, heavy current draw and age kill these quite easily. Sealed and gel lead-acid can produce maximum power for their size and weight usually far better then a standard lead-acid battery and recover quicker too. But the "depth" of their cycle is usually limited to between 25-15% of charge if nearly full recovery is to be achieved. I've used batteries just like these in my Black & Decker rechargeable mower for years...
230268
I had varied life from all types of li-ion batteries both oem and alternate suppliers. The only factors I've found that some devices drain the batteries in the off mode and if the battery goes dead it will have little power after it charges if it charges at all. It appears to me that it's flip of a coin how long the usable life batteries have. As long as the battery does not leak or over heat I think for the price the Wasabi batteries are worth a try. I would not leave any of these batteries charge unattended.
1131159
There are higher output non-rechargeable batteries. These wouldn't power a device I have which will run for about 8 hours with Energizer Ultimate Lithium. I'm groused I can't seem to find a rechargeable that'll power the device.
543311
If they work fine in a drill or impact then maybe it is your saw. If they will not charge at all I have heard stories of other people having trouble with the chips in the battery going bad on Makita brand batteries. I think that is why i've seen people recommend that you fully discharge the battery befor charging it. I'm not an expert, but if that happened I don't know if their is any way to fix it. Check your lights on the charger and see if there's a error light. Maybe get a hold of the manufacturer. Good Luck!
226110
Odds are that it is the battery. We have a B & D String trimmer, and the NiCd batteries, whether new or older, would not last more than 15 minutes. I recently purchased a Lithium replacement battery; it retains power and has lasted beyond the immediate task without a problem. I shall not buy any more NiCd batteries.
859471
I have the same model and have NEVER had that issue, even in thicker wood. Your battery may be going bad. Have it tested at a repair shop our try another battery. Make sure the contacts where the battery connects to the tool are okay and connecting right.
1986356
I don' know. I believe letting/not letting them discharge is NOT an issue with this type (they don't have the ghost charge problems other models do) . I recharge mine when they still have life left and haven't noticed a shortened lifespan, but haven't done a formal experiment.
1211985
No, that was a problem I had. Seems what you buy at Lowes, or other box stores is a different battery configuration. I had received a kit for a gift, then purchased these tools thinking they would share batteries. Nope. That said, still the best cordless tools that I have owned. I now own both post and the square slide type batteries.I may have gotten your question wrong. The saw uses the post type, and the drill and Lowes tools use the slide type.
2144422
These batteries do not fit well in Makita tools or chargers and they will not be warrantied by Makita
1506395
A 2032 button battery is used. You turn it off when not in use. The 2032 is a very common battery for cameras, watches, computers and flashlights. You can purchase them a radio shack, WalMart, Dollar Store and just about anywgere you go. The lithium type will last you longer but I doubt that you will be shooting straight until the battery dies. I hope this anwers your question.
411075
I must AMMEND my former statement!!! A DUMMY battery is NOT A DEAD one. They are actually sold as dummies by companies and are cheap. I was lucky enough to have been corrected by RbwNY on July 7th. He/she informed me of this and added that pairing a 'dead' battery with the Li-on s can cause damage, etc. to the equipment. I should have known this as I know that pairing even an alkaline with a on-alkaline is NOT recommended. My apologies to everyone out there who has read my former comment. And a BIG THANKS to RbwNY for the help and advice!!!
1939638
Not sure what you are asking but here goes .I use them on my job and need a back up battery. When they go dead they don't slow down slowly ,they just stop . I prefer to have a fully charged back up handy. These have proven to be excellent batteries . very good price also.