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Milwaukee M18 Top-Off 18V 175W Compact Power Supply w/ 6Ah Battery Expired

$130.50
$199.00
+ Free Shipping $199+
+21 Deal Score
15,962 Views
Max Tool has Milwaukee M18 Top-Off 18V 175W Powered Compact Inverter w/ 6Ah Battery (2846-21HO) for $130.50 after coupon code 2020more. Shipping is free on orders of $199+, otherwise flat-rate shipping is $8.95.

Factory Authorized Outlet has Milwaukee M18 Top-Off 18V 175W Powered Compact Inverter w/ 6Ah Battery (2846-21HO) for $130.50 after coupon code 2020more. Shipping is free on orders of $199+, otherwise flat-rate shipping is $8.95.

Thanks to Community Member Caleo for finding this deal.

Includes:
  • M18 TOP-OFF 175W Power Supply (2846-20)
  • M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery Pack (48-11-1865)
Features:
  • Attach this portable power supply to any M18 battery (M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery included) to provide continuous power or recharge devices with (1) AC 120V outlet, (1) USB-C PD port, and (1) USB-A port.
  • You can quickly charge up to three devices at once, without the barriers of speed throttling.
  • With the USB-C PD port (45W), this battery inverter can recharge devices from a fully depleted state to 80% capacity, up to 75% faster than conventional wall chargers (5W).

Editor's Notes & Price Research

Written by
  • About this product:
    • 5 Years Limited Tool Factory Warranty
    • 2 Years Limited Battery Factory Warranty
  • About this deal:
    • Please see original post and forum comments for additional details & discussion. 
Good Deal?

Original Post

Written by
Edited December 27, 2023 at 10:44 AM by
Max Tool [maxtool.com] has Milwaukee 2846-21HO M18 18V TOP-OFF 175W Power Supply with an M18 HO XC6.0 Battery for $130.50 after discount code: 2020more. Shipping is free on $199+ orders, otherwise $8.95.

Comes with an M18 HO XC6.0 Battery which uses newer 21700 battery cells.

M18 TOP-OFF 175W Power Supply & M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery Pack set delivers faster simultaneous power to personal devices and small electronics.
  • Attach this portable power supply to any M18 battery (M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery included) to provide continuous power or recharge devices with (1) AC 120V outlet, (1) USB-C PD port, and (1) USB-A port.
  • You can quickly charge up to three devices at once, without the barriers of speed throttling.
  • With the USB-C PD port (45W), this battery inverter can recharge devices from a fully depleted state to 80% capacity, up to 75% faster than conventional wall chargers (5W).
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Deal
Score
+21
15,962 Views
$130.50
$199.00

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Featured Comments

Anything you can think of, really, that doesn't exceed 175W.

Only limited by the battery you're using, or the number of batteries you have.

The USB-C output is going to be the most efficient, I believe, since it's not converting from DC to AC. It's only changing voltage really, DC to DC.

Converting to AC you'll have some losses. As far as the shitty sine wave, anything with its own power supply should be fine (e.g. router).

Consider the M18 12.0 HO battery. It has 216Wh of full charge. So, 216W for one hour. Or, 21.6W for 10 hours, for example. Say your router uses 21.6W --> the M18 12.0 battery should be able to run it for 10 hours. However, the inverter is not going to be 100% efficient. Neither is the power supply of the router going to be 100% efficient.

Say you lose 30% between the DC to AC conversion and the router power supply. 216Wh --> 0.70 = ~150Wh. If the router uses 20W --> 7.5 hours, under ideal conditions.

(Please, anyone, correct me if I'm wrong or have missed something).

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12-27-2023 at 09:55 AM.
12-27-2023 at 09:55 AM.
Ooh this is cool
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fletchb
12-27-2023 at 10:05 AM.
12-27-2023 at 10:05 AM.
Worked for me and I was actually looking for this. Thank you!
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SergioS6710
12-27-2023 at 10:07 AM.
12-27-2023 at 10:07 AM.
Love this tool, use it way more than I ever thought
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hostilehotdog
12-27-2023 at 10:55 AM.
12-27-2023 at 10:55 AM.
My top off has mostly been used as a USB charger, but recently was great for powering the modem and router during a 4 hour power outage.
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12-27-2023 at 11:00 AM.
12-27-2023 at 11:00 AM.
Quote from SergioS6710 :
Love this tool, use it way more than I ever thought
can you give us some examples?
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Joined Nov 2004
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> bubble2 2,105 Posts
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_A2
12-27-2023 at 11:11 AM.

Our community has rated this post as helpful. If you agree, why not thank _A2

12-27-2023 at 11:11 AM.
Quote from reactions :
Ooh this is cool

It is pretty cool, and handy. Especially with a 6.0 HO battery included! I have one, and like it. Just keep in mind the AC output is a really sh*tty modified sine wave.
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12-27-2023 at 11:35 AM.
12-27-2023 at 11:35 AM.
Quote from _A2 :
It is pretty cool, and handy. Especially with a 6.0 HO battery included! I have one, and like it. Just keep in mind the AC output is a really sh*tty modified sine wave.
can you give some examples how have you used it? Could i use it to temporary run a wireless router outdoors?
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SergioS6710
12-27-2023 at 11:40 AM.
12-27-2023 at 11:40 AM.
Quote from reactions :
can you give us some examples?

Cameras, go pro, small lunch box heater, cell phones, during blackouts, charge laptop on job site.
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wrlabarge
12-27-2023 at 12:09 PM.
12-27-2023 at 12:09 PM.
in for one, thanks
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Last edited by wrlabarge December 27, 2023 at 12:32 PM.
Joined Nov 2004
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_A2
12-27-2023 at 12:18 PM.

Our community has rated this post as helpful. If you agree, why not thank _A2

12-27-2023 at 12:18 PM.
Quote from reactions :
can you give some examples how have you used it? Could i use it to temporary run a wireless router outdoors?

Anything you can think of, really, that doesn't exceed 175W.

Only limited by the battery you're using, or the number of batteries you have.

The USB-C output is going to be the most efficient, I believe, since it's not converting from DC to AC. It's only changing voltage really, DC to DC.

Converting to AC you'll have some losses. As far as the shitty sine wave, anything with its own power supply should be fine (e.g. router).

Consider the M18 12.0 HO battery. It has 216Wh of full charge. So, 216W for one hour. Or, 21.6W for 10 hours, for example. Say your router uses 21.6W --> the M18 12.0 battery should be able to run it for 10 hours. However, the inverter is not going to be 100% efficient. Neither is the power supply of the router going to be 100% efficient.

Say you lose 30% between the DC to AC conversion and the router power supply. 216Wh --> 0.70 = ~150Wh. If the router uses 20W --> 7.5 hours, under ideal conditions.

(Please, anyone, correct me if I'm wrong or have missed something).
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ClubMakati
12-27-2023 at 12:29 PM.
12-27-2023 at 12:29 PM.
In for one thanks. We use this at a job site with limited power. With the battery deal Monday and this it's been a good Milwaukee week for us.
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Joined Apr 2008
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12-27-2023 at 01:27 PM.
12-27-2023 at 01:27 PM.
Quote from ClubMakati :
In for one thanks. We use this at a job site with limited power. With the battery deal Monday and this it's been a good Milwaukee week for us.
what battery deal was Monday?
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