DeWalt battery terminal polarity?

HarryM1BYT · 15th December 2015, 08:06

I happen to have a mains/ battery DeWalt vacuum cleaner, which makes for a useful small vac, designed to also work from a DeWalt drill battery. It has a compartment into which the battery can be plugged.

I don't have such a battery, the battery socket polarity is not marked, but I know it can run on DC 12 to 18v.

Could someone check such a battery with a meter and tell me which is positive and which the negative terminal please?

__________
| ................. |
| .....___ ......|
| .....| = |...... | < terminal =
| .... |... |...... |
| .....| = | ......| < terminal =
| .....___ ......|
| ..................|
| ..................|
| ..................|
| ..................|
__________
Drill Chuck end

I have seen a suggestion on the internet, that the terminal nearest the chuck, is the +ve. Anyone confirm that please?

HarryM1BYT · 15th December 2015, 18:07

Text graphics not that good - here is a link to a photo of the type of battery pack..

http://jimlaurwilliams.org/wordpress...roduct1977.jpg

HarryM1BYT · 15th December 2015, 20:33

Bump..

Somebody on this forum must have a Dewalt drill and a meter

steve-45 · 15th December 2015, 20:49

Am away from home until Thursday afternoon, if no answer by then I will have a look for you.

allan t · 16th December 2015, 06:15

Harry the +terminal is nearest to the little locating notch on the top of the battery or the side nearest the labels on the base if that makes it easier regard Allan

HarryM1BYT · 16th December 2015, 07:42

Quote:

Originally Posted by allan t

Harry the +terminal is nearest to the little locating notch on the top of the battery or the side nearest the labels on the base if that makes it easier regard Allan

Thanks, but no it doesn't help - I don't have a battery to look at, just the socket in the vac, where it is supposed to fit.

Is the positive terminal to the side of the battery, where the greatest bulk of the battery is?

Or in this photo - http://jimlaurwilliams.org/wordpress...roduct1977.jpg

Is it the terminal nearest the camera and slightly to the right?

[EDIT] I wonder if you meant the labels in that photo of the battery, the one which says 'Rebuilt..'?

ratchet · 16th December 2015, 14:03

I've just tested my Dewalt cordless battery

Referring to the photo linked above - the two terminals at the top of the conning tower (for want of a better description) are surrounded by a square of yellow plastic - at the front of this square there is a small plastic block (which I believe Allan is referring to as the notch). The terminal closest to this is the +

Or as you earlier thought - it would be at the chuck end of the drill, the end where the greatest bulk of the battery is, and the label that says rebuilt.

15th December 2015, 08:06	#1
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	DeWalt battery terminal polarity? I happen to have a mains/ battery DeWalt vacuum cleaner, which makes for a useful small vac, designed to also work from a DeWalt drill battery. It has a compartment into which the battery can be plugged. I don't have such a battery, the battery socket polarity is not marked, but I know it can run on DC 12 to 18v. Could someone check such a battery with a meter and tell me which is positive and which the negative terminal please? __________ \| ................. \| \| .....___ ......\| \| .....\| = \|...... \| < terminal = \| .... \|... \|...... \| \| .....\| = \| ......\| < terminal = \| .....___ ......\| \| ..................\| \| ..................\| \| ..................\| \| ..................\| __________ Drill Chuck end I have seen a suggestion on the internet, that the terminal nearest the chuck, is the +ve. Anyone confirm that please? __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money. Last edited by HarryM1BYT; 15th December 2015 at 08:09..

15th December 2015, 18:07	#2
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	Text graphics not that good - here is a link to a photo of the type of battery pack.. http://jimlaurwilliams.org/wordpress...roduct1977.jpg __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

15th December 2015, 20:33	#3
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	Bump.. Somebody on this forum must have a Dewalt drill and a meter __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

15th December 2015, 20:49	#4
steve-45 This is my second home Rover 75 Saloon CDTi Join Date: Oct 2015 Location: Belvedere Posts: 4,076 Thanks: 108 Thanked 1,089 Times in 774 Posts	Am away from home until Thursday afternoon, if no answer by then I will have a look for you.

16th December 2015, 06:15	#5
allan t Avid contributor mg zt cdti + 75 connie cdti Join Date: Apr 2012 Location: aberdeen Posts: 200 Thanks: 90 Thanked 26 Times in 21 Posts	Harry the +terminal is nearest to the little locating notch on the top of the battery or the side nearest the labels on the base if that makes it easier regard Allan

16th December 2015, 14:03	#7
ratchet Posted a thing or two ZT-T + CTDI Join Date: Oct 2014 Location: Gone walkabout Posts: 1,185 Thanks: 179 Thanked 361 Times in 289 Posts	I've just tested my Dewalt cordless battery Referring to the photo linked above - the two terminals at the top of the conning tower (for want of a better description) are surrounded by a square of yellow plastic - at the front of this square there is a small plastic block (which I believe Allan is referring to as the notch). The terminal closest to this is the + Or as you earlier thought - it would be at the chuck end of the drill, the end where the greatest bulk of the battery is, and the label that says rebuilt.