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Model # BL1815

Internet # 100557383

Store SKU # 740094

18-Volt Compact Lithium-Ion 1.5Ah Battery

This item has been discontinued.
The Home Depot no longer carries this specific product.

$79.00 /each


Model # BL1815

Internet # 100557383

Store SKU # 740094

The Makita 18-Volt Compact Lithium-Ion Battery charges 4X faster than comparable NiCd batteries. It only takes 15 minutes. Makita's rapid optimum charger communicates with the battery's built-in chip to optimize the battery life by actively controlling the current, voltage and temperature.

California residents: see  Proposition 65 information

  • Resists self-discharge and remains ready for use even after long periods of storage
  • Compatible with a variety of Makita 18-Volt power tools
  • 16 contact terminals to reduce power fluctuations in high-vibration work environments
  • Built-in fan to cool the battery and extend its life
  • Charger (model DC18RA) sold separately

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Battery Power Type 
Lithium Ion 
Color Family 
Power Tool Accessory Type 
Power Tool Product Type 
Power Tool Accessory 
Tools Product Type 
Power Tool 
Voltage (volts) 


Rated 3.4 out of 5 by 26 reviewers.
Rated 4.0 out of 5.0 by Not too bad... First this ad doesn't say this is the 1.5 Ampere Hour battery, which is pretty basic- HD has trouble getting the details right on their website. Second, the on-line price elsewhere is 20% less, w/ free shipping. Third, I had a couple of the early 3.0AH ones go bad- Makita may have improved them by now, All this having been said, the Makita 18V Li-ion system is great- batteries charge quickly, don't run down even after sitting several weeks, which NiCads do. The tools are very well designed, excellent ergonomics, good value for the price. They're a generation out of date, but they're still the equal of anything on the market. I bought an extra impact driver, just in case the first failed- as a professional, I don't want to be without one. June 25, 2011
Rated 4.0 out of 5.0 by It is what it is... it's a battery. We had purchased the drill and needed a second battery to swap out with. The unit gets used off and on about 80 hours per week. The batteries charge quick and are adequate enough to keep us going with several changes throughout the day. We have had the drill and batteries a couple of months now and all seems to be well. There does not seem to be any decline in performance. The beauty of these are that they are so light weight in comparison to the De-Walt 18V drill/battery we were using. I do not feel they have the torque and power of the De-Walt and the batteries do not seem to hold a charge for as long as the De-Walts, but for the difference in weight (with a lot of the use being above shoulders), it is well worth the effort to swap batteries more often. December 17, 2014
Rated 4.0 out of 5.0 by it's a replacement battery If you own a Makita compact lithium ion drill and your battery went bad, this is your only option. I put my tools through he!!. These batteries last for about a year of regular use(making holes in duct, sinking screws, falling off ladders, etc...) 50 hrs/wk 51 weeks out of the year. Then i just get an error code and the battery won't even take a partial charge. The guys running Dewalts replace theirs at about the same rate. I'm going to try the Ryobi +one kit next time around. See how it holds up. July 30, 2013
Rated 1.0 out of 5.0 by Battery life - One year :( After one year of daily charging, one time per day, the battery no longer accepts charge. So I can no longer use the product. I'm going to try a different brand if it will work in my Makita radio. I only use the battery for the radio, & get roughly 4.5 hours of constant play power. Perhaps it's just this compact style, but other reviews are inconclusive. February 2, 2015
Rated 5.0 out of 5.0 by Amazing performance! These batteries are amazing! I have been using these batteries in my cabinetry shop for a good 3 years and have not had one problem with them. It's amazing how long they last for how quick they charge. Worth every penny. May 16, 2011
Rated 1.0 out of 5.0 by Worst Battery Ever I bought a combo set for over 500.00 and after a year none of the battery's will charge after a year . am going to send another 300.00 on 3 battery's . WILL JUST BUY A NEW SET OF ANOTHER BRAND> MAKITA LONG YET ANOTHER CUSTOMER !!!!! November 2, 2014
Rated 1.0 out of 5.0 by Battery doesn't last I had two batteries that bought with the drill. I used my drill about once a month and after a year, both batteries won't accept a charge. I have to buy a new battery because I paid 300 for drill, charger and two batteries. November 21, 2012
Rated 5.0 out of 5.0 by How to make it last I've been using these batteries for four years. I'm a small remodeling contractor and someone one told me never to let them completely die. And if your not using them much charge them at least once a month. Either his advice was good or I got lucky. Hope this helps November 3, 2014
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