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expired Posted by Rokket | Staff • Jul 31, 2021
expired Posted by Rokket | Staff • Jul 31, 2021

Black+Decker 6V and 12V Battery Charger/Maintainer

$10

$25

60% off
Walmart
55 Comments 40,167 Views
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Deal Details
Walmart has Black+Decker 6V and 12V Battery Charger/Maintainer (BM3B) on sale for $11.24 -> Now $10.22. Shipping is free with Walmart+ (free 15-day trial) or on orders of $35 or more.

Thanks to Deal Hunter Rokket for finding this deal.

Features:
  • 3 Ways to Connect: Battery clips, 12V DC Accessory Plug & Battery Ring Terminal
  • Reverse polarity protection
  • AC Low voltage compensation ensures maximum performance when used with an extension cord

Editor's Notes

Written by oceanlake | Staff
  • About this deal:
    • Our research indicates that this Black+Decker 6V and 12V Battery Charger/Maintainer is $8.20 lower (42% savings) than the next best available price from a reputable merchant with prices starting at $19.44 at the time of this posting.
  • About this product:
    • This battery charger has received an average rating of 4.3 stars out of 5 based on over 500 Walmart customer reviews.
  • About this store:
    • Most items sold & shipped by Walmart.com can be returned for free, either to a store or by mail up to 90 Days after item is delivered. See the Walmart returns page for returns information.

Original Post

Written by Rokket | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Walmart has Black+Decker 6V and 12V Battery Charger/Maintainer (BM3B) on sale for $11.24 -> Now $10.22. Shipping is free with Walmart+ (free 15-day trial) or on orders of $35 or more.

Thanks to Deal Hunter Rokket for finding this deal.

Features:
  • 3 Ways to Connect: Battery clips, 12V DC Accessory Plug & Battery Ring Terminal
  • Reverse polarity protection
  • AC Low voltage compensation ensures maximum performance when used with an extension cord

Editor's Notes

Written by oceanlake | Staff
  • About this deal:
    • Our research indicates that this Black+Decker 6V and 12V Battery Charger/Maintainer is $8.20 lower (42% savings) than the next best available price from a reputable merchant with prices starting at $19.44 at the time of this posting.
  • About this product:
    • This battery charger has received an average rating of 4.3 stars out of 5 based on over 500 Walmart customer reviews.
  • About this store:
    • Most items sold & shipped by Walmart.com can be returned for free, either to a store or by mail up to 90 Days after item is delivered. See the Walmart returns page for returns information.

Original Post

Written by Rokket | Staff

Community Voting

Deal Score
+56
Good Deal
Visit Walmart

Price Intelligence

Model: BLACK + DECKER Vehicle Battery Maintainer and T rickle Charger

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Current Prices

Sort: Lowest to Highest | Last Updated 7/2/2025, 11:39 AM
Sold By Sale Price
Amazon$23.56

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Top Comments

LotusCloudLex
6752 Posts
703 Reputation
I own two of these. The newer one I got is built a little different and is glitchy vs my older one. I wouldn't buy this again. Go with quality NOCO. I also have other brand of chargers. Battery tender (the bigger one), Aukey, and craftsman?) They are all glitchy. A couple has overcharged my car battery. The old black and decker one is still solid. But the best is NOCO hands down, one of the best!
LotusCloudLex
6752 Posts
703 Reputation
I love how people give thumbs down for honest feedback. Just because it's not a raving review lol

My 2 cents, take it or leave it. Just contributing to SD, or I could not post.
MrSkeptic
14476 Posts
3752 Reputation
No free ship to store kills it.

54 Comments

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Aug 1, 2021
43 Posts
Joined May 2019
Aug 1, 2021
Slawek1
Aug 1, 2021
43 Posts
Mine died after one year. I would buy only with 3 year warranty.
Aug 1, 2021
3,597 Posts
Joined Dec 2005
Aug 1, 2021
Arcanlaw
Aug 1, 2021
3,597 Posts
Quote from LotusCloudLex :
I love how people give thumbs down for honest feedback. Just because it's not a raving review lol

My 2 cents, take it or leave it. Just contributing to SD, or I could not post.
Don't be so sensitive. You shouldn't try to get validation from SD thumbs up/down.
3
Aug 1, 2021
12 Posts
Joined Dec 2013
Aug 1, 2021
SamB5745
Aug 1, 2021
12 Posts
These are good if you are around to monitor your battery state use a volt meter and make sure it goes into trickle charge mode (low current output). I made the mistake of using a cheap GooLoo 2amp trickle charger and it almost cooked my battery. My trunk was getting hot and battery was boiling, went and got the CTEC charger for 100 bucks and now I can rest assured my house wont burn down while im on vaca 6 weeks. My benz draw about 85 milliamps of current while in sleep mode which is a bit high. And i believe the cheap trickle chargers like this one don't sense that and keep charging at full amps therefore cooking battery. CTEC charges the battery to a certain state and when it drops below it charges it again which keeps from overcharging it.
Aug 1, 2021
5,699 Posts
Joined Feb 2008
Aug 1, 2021
FearAndLoathing
Aug 1, 2021
5,699 Posts
Quote from Arcanlaw :
Don't be so sensitive. You shouldn't try to get validation from SD thumbs up/down.
First off he said take it or leave it, so your comment is unwarranted.

Secondly, when you share your time and experience to try to help your fellow man, it gets annoying when others sabotage it based on disinformation and for the sake of making sales.

He might be right saying he could just not post. I doubt even 1/4 the posts are made by individuals anymore.
1
Aug 1, 2021
46 Posts
Joined Aug 2011
Aug 1, 2021
jack345
Aug 1, 2021
46 Posts
What am I missing here $9.99 on Amazon.

https://www.amazon.com/Automatic-...025&sr=8-2
2
Aug 1, 2021
74 Posts
Joined Nov 2009
Aug 1, 2021
Eugene150
Aug 1, 2021
74 Posts
Quote from jack345 :
What am I missing here $9.99 on Amazon.

https://www.amazon.com/Automatic-...025&sr=8-2
That's just the case 😂
2
1
Aug 1, 2021
46 Posts
Joined Aug 2011
Aug 1, 2021
jack345
Aug 1, 2021
46 Posts
Quote from jack345 :
What am I missing here $9.99 on Amazon.

https://www.amazon.com/Automatic-...025&sr=8-2 [amazon.com]
Its the HARD CASE ONLY!

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Aug 1, 2021
56 Posts
Joined Dec 2013
Aug 1, 2021
gEmB2MGnSVNG9
Aug 1, 2021
56 Posts
So the reviews seem to indicate a percentage of these were left in a humid environment before being sold and rusted/corroded, I picked one up figure I will crack it open and see if I got a "good" one or not. Thanks OP.
Aug 1, 2021
14,585 Posts
Joined Nov 2019
Aug 1, 2021
Lilyly
Aug 1, 2021
14,585 Posts
Quote from 80is :
Have been using the HF $5 one for many years
still $5 now?
1
Aug 1, 2021
1,563 Posts
Joined May 2014
Aug 1, 2021
fiveohmxco
Aug 1, 2021
1,563 Posts
Thanks op got 4, finally have enough to keep the collection topped off.

We've had a couple of these for years. One started clicking and not charging after like 3 years in the sun, so im happy with that. hopefully these 4 last longer being inside a garage.

tu and rep
Original Poster
Pro
Deal Hunter
Aug 1, 2021
40,772 Posts
Joined Jun 2011
Aug 1, 2021
Rokket
Aug 1, 2021
Original Poster
Pro
Deal Hunter
40,772 Posts
Thanks for the nice comments on this deal. Smilie Glad it's been helpful.
Aug 1, 2021
52 Posts
Joined Jan 2008
Aug 1, 2021
bargainator
Aug 1, 2021
52 Posts
Thanks OP - Ordered 3 and a cheap grocery item for free shipping. Will use on motorcycles and yard equipment.

A while back I paid $20+ dollars for the same one, but after using it a short while I sold it to someone who had a more urgent need for one.Never had a problem with it tho.

Walmart store pickup SUCKs in my area. They recently built a fancy Kiosk for store pickup orders, but after checking in and waiting around for a Walmart employee to show up I am usually completely ignored. So I usually limit online purchases to ones that I plan to buy enough item(s) to get free shipping.
Aug 1, 2021
15,688 Posts
Joined Nov 2010
Aug 1, 2021
80is
Aug 1, 2021
15,688 Posts
Quote from Lilyly :
still $5 now?
probably no, but still less than this one
1
Aug 1, 2021
14,585 Posts
Joined Nov 2019
Aug 1, 2021
Lilyly
Aug 1, 2021
14,585 Posts
Quote from 80is :
probably no, but still less than this one
just checked. its $25 without any coupon for this similar charger at harborfreight.

the $9 charger therr isnt the same category like this one.
1

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Aug 1, 2021
74 Posts
Joined Dec 2008
Aug 1, 2021
bartmaniac
Aug 1, 2021
74 Posts
Thank you OP, in for 6.

FYI, the price is now down to $10.22 each.

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