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The FirstPower Battery Adapter converts Milwauk 18V and Dewalt 20V lithium-ion batteries to fit Makita 18V cordless tools, supporting multiple Makita battery models. It features a 20V output and a built-in 5V/2.1A USB charging port for mobile devices, all housed in a lightweight, durable design perfect for professionals on the move.


| Output Voltage | 20 Volts |
| Power Source | Corded Electric |
| Current Rating | 2.1 Amps |
| Total USB 2.0 Ports | 1 |
| Main Power Connector Type | 2 Pin |
| Portable | Yes |
| Amperage | 2.1 Amps |
| Total Usb Ports | 1 |
| Wattage | 1 watts |
| Connectivity Technology | USB |
| Connector Type Used on Cable | usb |
| Compatible Devices | Ipad, Cameras, Adapter |
| Compatible Phone Models | 18V |
| Additional Features | Battery Conversion, USB Charging Port |
| Item Weight | 0.13 Kilograms |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Material | Plastic or Synthetic Material |
C**S
Works as intended and the fit is excellent!
I love battery adapters... don't you?!!! This one appears well made, but honestly there's no way to tell how well or long the internal electronics will work... time will tell.Build is very nice and clean and the adapter fits snugly without slop... meaning the manufacture took their time with dimensioning, at least for Milwaukee batteries to Makita tools. My Milwaukee battery mates really well with the adapter, and the adapter mates very well with whatever Makita tool I put it on. There is no slop to speak of, and the adapter locks firmly to the battery and tool while affording a smooth removal after use.I give this 5 stars for now. In time, and if it lasts as long as I hope it will, I won't have to edit this review to drop the rating. This has been purchased for occasional use only, so it'll be some time before I'll be able to make a judgement. Very nice so far! Buy it and you won't be disappointed!
M**A
Works as intended. Milwaukee m18 battery to makita tool
I have an assortment of Milwaukee tools and batteries and some makita tools with no batteries that I’ve bought at yard sales. I didn’t want to buy separate makita batteries and chargers but the tools were often too good a deal to pass up. I mean, $40 for a new circular saw(skillsaw) and reciprocating saw (sawzall) is a killer deal no matter which way you cut it, even without batteries. Anyway, this came in today, put it on right away and pulled the trigger a voila! Works as advertised, so I think I’ll be buying a few more to leave on the makita tools so I’m not digging through drawers for 40 minutes trying to find it when I need it.
W**R
Exactly what I needed...
I wasn't sure what would fit some of these knock-offs, so I had to study a few of the pictures for several, but this covers a lot of those oddball power tools/trimmers and adapts to Dewalt 20v max connection, or Milwaukee M18... in my case, it fits the 20v max or the 20/60v connection and provides a nice boost in power, not to mention I can use batteries I already have! 8^)
P**B
A little flimsy but Works
I buy dewalt tools so im heavily invested in Dewalt batteries. Flexvolt =6 - 9ah , 10 -6ah, and dozens of 20v batterys.. I just found out about these adapters so I bought the makita track saw (should have bought that years ago)Instead of buying extra maika batteries I bought these adaptors and sure enough they work with the dewalt batteries. Very happy with them. The only downside I see are they are kind of flimsy. I dont believe they will survive a fall with a battery in them. With that said ,I would buy them again and am now going for the adaptors for milwaukee tools
S**E
A Must Have For Me Now
I got my mini chainsaw to cut up a tree that fell in my yard but have been using it for a lot of other small projects and honey do tasks because it's actually fun to use .I'd never heard of the brand saw , don't know how long the batteries are gonna hold up (or the saw itself for that matter ) , and I have a bunch of DeWalt tools and batteries already so when I saw this adapter I figured I'd give it a try . The OEM batteries take 3 hours to charge from dead on their charger but my Dewalt batteries take about an hour from dead on their charger so I can have more juice faster by switching if I need to as well .I'm not sure how well the innards are put together but it seems , without breaking it apart , solid and like it'll hold up for a while .If your mini chainsaw battery is a 48Vf , or a Makita brand , this adapter will work on your saw . If your other batteries are 20 volt max by Dewalt they'll fit this adapter . I borrowed the battery from a co-workers Milwaukee 18 volt tool and this adapter does indeed work using a Milwaukee battery as well .
J**Y
Works with Hercules power tools
This works very well with Makita tools. I have found if you use a high output, Milwaukee battery the Makita tool definitely gains a little bit of power and if you have Hercules power tools from Harbor freight, they also work on the adapter
H**Y
If you have a old Makita and a new Dewalt this is what you need!
I switched to Dewalt but have two Makita drills that work fine... but are old and Makita no longer sells batteries. This works perfect and now I have a couple of spare drills!
P**.
It works but fit and finish not so great.
The bottom line is the product works as advertised. It's a bit tall after adding it to my smallest Milwaukee battery, it did not fit the compartment of my Makita powered wheel barrow. The fit between the adapter and the Milwaukee could have been done better, it wiggles a little bit. Other similar item can be bought for $5 less.
Trustpilot
2 weeks ago
3 weeks ago