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Replacement battery for use with Makita 18V compact series lithium-ion cordless power tools. Compatible With: Makita Power Tools, Battery Amp/Hour: 1.5, Battery Type: Lithium-Ion, Volts: 18, Items Included: 1 Battery
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Technical Details
- 1.5 Amp Hours- For use only with Makita Chargers DC18RA;DC18SC;DC24SA
- 5X lower self-discharge keeps battery cells active and ready to use after long period of storage
- Charging at any time will have no effect on the battery
- Battery's built-in Memory Chip communicates with the charger to maximize battery life
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By B. Florie (NC)
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 they are keyed for the larger batteries because they can draw more current than these smaller batteries can provide without damaging the cells. So you probably shouldn't slap one of these on your circular saw and go ripping 2x12s all day, or you'll kill the pack very quickly. Makita isn't trying to screw you into buying more batteries, they're trying to make sure you don't kill your batteries.
Another note, considering how many complaints of defective packs there are: don't run these batteries down to nothing, and try not to store them fully charged. Running them into the ground is a sure way to damage the cells, and I've read estimates of up to 20%/year capacity loss for a fully-charged pack, compared to as low as 2%/year for a pack stored @ 40% charge.
And of course, like any cordless tool/battery purchase- shop your options before buying batteries separately. I got the BHP452HW kit for only $50 more than 2 batteries. That's a cheap, easy way to have a spare drill or driver and charger for around the house, or to sell to recoup the extra cost.
I'm knocking off one star because Makita doesn't do a good job of letting people know that these slim packs only work on certain tools- and not very many, either. That's been a complaint for years now, and it's still not mentioned anywhere in their literature or website- even my local Makita dealer didn't know they weren't compatible with all LXT tools. It's not like it's standard practice- Bosch's and Milwaukee's slim packs fit their entire lineup, AFAIK.
By Jonathan Turner
I've read a lot of bad reviews of the slimline batteries but so far my experience has been good. I bought a pair through Amazon two years ago along with an impact driver. The driver gets moderate use (2-3 days a week, every week) for both drilling and driving. Primarily driving but regular drilling as well; pilot holes and 1/2 in or 3/4 in spade bits. The batteries last pretty well and charge very quickly so I just swap when one gets low and the backup is always charged in time.
I had one 'bad battery' scare where I had not used the tool for a few days but had left the battery on the charger. The first batt ran low and I switched to what the charger said was a fully charged battery...however it was completely dead. Full-on flat. I switched back, thinking that somehow I had confused the two but they were both dead. So I put the supposedly-charged-but-actually-dead battery back on the charger after waiting a minute or two. It charged up as it should have. That has happened a few times since...whenever I leave a battery on the charger for several days. I am wondering if there is a charger problem of some kind.
ANyway, if I charge the batteries and then leave them on the bench next to the charger they seem to hold up just fine.
By Scott B. Phillips (Rockwall, TX)
Same as the others posting here, one of the batterys in my expensive drill driver set lasted about 3 months (used 3 times), and the other battery lasted about one year (used about 12 times). The drills are very nice, but the battery's are totally bad and I suspect Makita knows it since everybody seems to be having the same problem.
By Phil G. Thompson (Madison, Wi)
Like many of the other reviews, the drill is outstanding............very light weight and excellent performance. However, the batteries are unreliable with a very short life span. I bought the drill and impact set with two batteries. With less than 5 hours of use on one battery it is already 'defective' according to the charger. At $75 per battery the batteries life span should be much longer. I will use the remaining battery until it too is defective and then sell the drill/impact on Ebay and buy a Milwaukee. I have always bought Milwaukee products and my shop is full of them but I really liked this drill when it first came out..........I should have stuck with Milwaukee..........lesson learned..........won't make this mistake again.
By Bradly J. Lewis (Portland, OR USA)
Plan on spending $1 per battery charge use on average if you're going to buy these batteries. I bought a Makita drill kit that came with two 1.5 A-hour (small) batteries and a charger. One of the small batteries died after about 40 charges. So I bought two of the large batteries, 3.0 Amp-hour. They lasted longer, but one of the large batteries died after about 80 charges. Similar to what others have stated, I also like the drill. The batteries don't last much longer than the one year warranty, if that, and nothing like the 1200 cycles the service manager claims.
Save your receipt if you plan on getting your batteries replaced, otherwise they go by the manufacturer's date which may be months earlier than you bought it. I took the time to take the batteries to a service shop and recycled two dead batteries. They wouldn't credit me on a 40 cycle battery because I didn't bring it in before the warranty expired.
If you depend on a cordless tool, it would be wise to stock extra batteries for several reasons. As the batteries get older, they don't hold as much of a charge. Also, the batteries go without warning. I keep four batteries in my truck. Two to use, one in case battery is losing power and one in case a battery dies without warning. All the batteries are the large size. (The small ones are a waste of money.) That's over $200 in batteries.
It seems that cordless tools are like inkjet printers. With inkjets they make money on selling the ink, and with cordless tools, they hook you with buying replacement batteries.
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Buy Makita BL1815 18-Volt 1.5 Ah Compact Lithium-Ion Battery Now
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