Reply
 
Thread Tools Search this Thread
 
Old 26 May 2022, 20:45   #1
Member
 
Country: UK - England
Town: Bideford
Make: Bombard Aerotec
Length: 4m +
Join Date: Aug 2014
Posts: 353
Bravo pump off makita battery

Hi all, trying to make a really portable inflator setup for my little avon inflatable. I've got a 12v bravo pump that i've had for years, used to use it on my old aerotec sib. Any idea if a makita 18v LXT battery would be too 'hot' for it? Also what sort of current do they draw? If i knew that i could make a voltage drop circuit. Cheers all
__________________

__________________
simonafloat is offline   Reply With Quote
Old 27 May 2022, 01:07   #2
909
Spammer
 
Country: Canada
Join Date: Aug 2021
Posts: 281
You will fry your Bravo

3 x 18650 cells will work



These were pulled from a Dewalt
__________________

__________________
909 is offline   Reply With Quote
Old 27 May 2022, 05:57   #3
Member
 
Country: UK - England
Town: Bideford
Make: Bombard Aerotec
Length: 4m +
Join Date: Aug 2014
Posts: 353
Quote:
Originally Posted by 909 View Post
You will fry your Bravo

3 x 18650 cells will work



These were pulled from a Dewalt
Thanks, i did think the voltage would be a bit much. Shame as i'm a carpenter and all my gear is makita so i've got loads of batteries kicking around.
__________________
simonafloat is offline   Reply With Quote
Old 27 May 2022, 06:23   #4
Member
 
Country: UK - England
Length: 3m +
Join Date: May 2021
Posts: 687
All the tool batteries I have are 18v so would not run my 12v pump for long.

Someone on here, possibly Fen, suggested using a mobility scooter battery which is what I've done and it works perfectly. Small, affordable battery that fits in one of the compartments my pump came in.







I like the idea of using tool batteries on the basis that I generally like things like that to do as many jobs as possible. If it's simple and safe to make a dc-dc converter and not using a method that ditches the 6v as heat then it's a smart idea.

Given how much kit is 12v and how popular 18v tools have become then it wouldn't surprise me if people have already done this.
__________________
TmMorris is offline   Reply With Quote
Old 27 May 2022, 07:21   #5
Member
 
Country: UK - England
Town: Appley Bridge
Boat name: RedNeck
Make: Excel SD360
Length: 3m +
Engine: Mercury EFI 15HP
MMSI: 235924407
Join Date: Jul 2020
Posts: 1,589
Morning Tim, first picture just right of the bag, should hide that habit

I'm another for a small mobile scooter battery, works well for me.
__________________
Steve509926 is offline   Reply With Quote
Old 27 May 2022, 07:47   #6
Member
 
Country: UK - England
Length: 3m +
Join Date: May 2021
Posts: 687
Heroin & power tools. What can possibly go wrong?

Re the step down dc-dc converter buck, the concept has already been done but it seems to be one of those things that is on sale in the US but no one is importing to the U.K.:

https://www.amazon.com/Battery-Regul...3634187&sr=8-4

Would actually be quite a useful device to have in general.
__________________
TmMorris is offline   Reply With Quote
Old 27 May 2022, 07:49   #7
Member
 
Country: UK - England
Length: 3m +
Join Date: May 2021
Posts: 687
That said, there seem to be a few:

https://www.amazon.co.uk/s?k=Battery...ref=nb_sb_noss

Edit to add:

In fact they appear to be a common product once you find how to search for them. This is the Ryobi one:

https://www.amazon.co.uk/Battery-Ada...s%2C59&sr=8-12

I might get that as I can see it just being one of those useful things.
__________________

__________________
TmMorris is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 00:23.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.