Makita BL1830 18-Volt LXT Lithium-Ion Battery

I have owned a set of Makita tools with the LXT batteries for a couple years now and I have noticed absolutely zero power loss or any other problems. I use them quite regularly whether building concrete forms, decks, remodels, etc. I can think of three things that may be happening to the batteries of those who have commented on bad performance or longevity; (1) Occasionally, batteries can be bad from the factory (I have yet to own a milwaukee tool with the new "V" or "M" series battery that holds up past a few months. I have both V28 and M12, and have had ALL packs replaced) (2) It is possible to have a bad charger which is damaging the batteries itself, or (3) Perhaps the users are taking them all the way to the point of stalling and complete discharge, and for that the batteries are truly not made to do. It is best that once you notice the battery pack is wearing down, to grab a fresh one and put the discharged on the charger to cool down and refresh. Also, if the batteries...Read more

I went ahead and invested in a pair of these batteries despite the mixed reviews, figuring I'd at least get a year out of them with the warranty. So far, they've performed just fine, even on tools that are supposed to only use the BL1830. I mostly use them on the BHP454 drill (note: this is one of the tools that's keyed for the 1830 pack) and BTD141 impact driver when I'm not going to be using them for long, so the decreased runtime doesn't bother me. I also use them on the angle grinder and recip saw (after removing the little tab on the tools) for light work in tight spaces. I wouldn't want them to be my only batteries, but they're a great addition to a couple of the larger batteries if you have a few tools that can use them.

These slim packs are very handy on the drill, impact, and flashlight- the lighter weight and smaller size are noticeable, especially with the smaller (BDF/BHP452) drills. However, buyer beware when it comes to using them on the 'heavier' tools, as...Read more

Really, these batteries provide seemingly endless power. They hold their charge for weeks with very little loss. I can use one battery for drilling and driving throughout an entire (moderately sized) project. They are extremely lightweight and charge in twenty minutes or less usually (in hot weather it takes longer). All three of mine slide on and off easily, with no issues of binding or falling off. With all the praise comes a VERY important caveat. DO NOT run these batteries into the ground. The instructions state that as soon as you notice a loss of power, stop and charge. If you over-discharge Li-Ion batteries, you can seriously degrade the life of the battery. These batteries are 1/3 cheaper on Amazon.com than at the home centers, so buy from here! Also, only the cells themselves are made in Japan, all other parts are made and final assembly is in China.