Recent Topics
Best recommendation for Honda 10w30 trans
by Pepsibottle1
06/25/18 01:55 PM
Mills Fleet Farm Roadrunner batteries - who makes?
by volk06
06/25/18 01:09 PM
Honda ATF DW1 bottle stamp decoding
by parshisa
06/25/18 12:03 PM
How to lower throttle sensitivity?
by NICAT
06/25/18 11:41 AM
That's some service! (New Central AC...)
by xBa380
06/25/18 11:13 AM
Valvoline 2 Cycle TC-W3 Marine Oil - 6qt - $20
by Jimzz
06/25/18 10:45 AM
Plumbing/Bldg Experts: Cause of Wet Slab?
by LoneRanger
06/25/18 10:13 AM
How to CONFIRM the Country of Manufacture
by Ed_Flecko
06/25/18 09:58 AM
Replacing trans oil seal
by redhat
06/25/18 09:50 AM
VW diesels sitting in huge lots waiting......
by ZZman
06/25/18 09:09 AM
DTD/DT Independence Day Promos
by Sayjac
06/25/18 08:39 AM
It's AMSOILŪ, not Amsoil
by Rat407
06/25/18 06:39 AM
VW Passat 2007
by madRiver
06/25/18 06:18 AM
Review: CVJ Remanufactured CV Axles
by The Critic
06/25/18 03:40 AM
Towing without 85w140?
by OilFilters
06/25/18 03:07 AM
2015 VW GTI autobahn oil questions
by Skyalbo
06/24/18 11:28 PM
Corrosion in the garage - salt or humidity?
by Kurtatron
06/24/18 11:13 PM
Darn dogs
by AZjeff
06/24/18 10:21 PM
New GC?
by Bullwinkle007
06/24/18 10:04 PM
The guy with the plexiglass head on you tube
by andyd
06/24/18 09:21 PM
Newest Members
dhy808, ROD_Z, lozpxs, danthemanx07, FunktasticLucky
65319 Registered Users
Who's Online
83 registered (4WD, 28oz, 853okg, bbhero, AndyB, badtlc, 8 invisible), 1739 Guests and 38 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65319 Members
67 Forums
285971 Topics
4772305 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4583306 - 11/23/17 11:51 PM Porter Cable 18V Tools - Upgrade to lithium batt
Reddy45 Offline


Registered: 08/15/08
Posts: 2973
Loc: USA
I have owned a set of the Porter Cable 18V tools for some time that originally came with 18V NiCD battery packs. I've been diligent about running the batteries down all the way before recharging, so I'm still getting good runtime from the original batteries 8 years later.



However, it seems like PC released the exact same battery pack in a lithium-ion version a few years ago, and those batteries would fit my tools.




So 18V is 18V right? Even if the chemistry is different, the tool itself doesn't know the difference?

Would the factory charger (meant for NiCD) batteries be capable of charging a lithium battery? (I know PC sells a multi-chemistry charger for this purpose, but I'm trying to see if I can "upgrade" my tools to use lithium batteries at the lowest cost possible)

Top
#4583360 - 11/24/17 05:02 AM Re: Porter Cable 18V Tools - Upgrade to lithium batt [Re: Reddy45]
Dave9 Offline


Registered: 08/28/17
Posts: 188
Loc: Cincinnati, USA
Originally Posted By: Reddy45
I have owned a set of the Porter Cable 18V tools for some time that originally came with 18V NiCD battery packs. I've been diligent about running the batteries down all the way before recharging, so I'm still getting good runtime from the original batteries 8 years later.


Umm, no. That does nothing useful. NiCd do not have a memory effect outside of specific NASA testing that caused the exact same discharge level every time, in satellite use with solar recharging no less. What people more often mistakenly report as "me too" memory effect observations are just worn cells that need a discharge and recharge cycle to get them back to the rest of their (now worn) remaining capacity.

If anything it is worse for cells to drain all the way as they get older because the weakest cell in the pack will get closer and closer to being reverse charged, reach 0V and the user keeps using the tool so current through that 0V cells begins to reverse charge it. 2nd common problem was dumb chargers that overcharged and cooked the cells, though obviously you do not have a dumb charger or you'd never have gotten 8 years out of them, unless you barely ever used them.

[qote]However, it seems like PC released the exact same battery pack in a lithium-ion version a few years ago, and those batteries would fit my tools.

So 18V is 18V right? Even if the chemistry is different, the tool itself doesn't know the difference? [/quote]

Yes, the voltage is fine even considering that both battery types reach a higher peak charge voltage which ends up nearly the same. Your confidence and confirmation that they mechanically fit the same is the issue as far as function goes.

Quote:
Would the factory charger (meant for NiCD) batteries be capable of charging a lithium battery? (I know PC sells a multi-chemistry charger for this purpose, but I'm trying to see if I can "upgrade" my tools to use lithium batteries at the lowest cost possible)


No, you definitely cannot use a NiCd or NiMH charger for Li-Ion. Some Li-Ion generation chargers are backwards compatible but most definitely no older chargers are forwards compatible with Li-Ion.

The two most cost effective options are buy more NiCd packs or buy a new tool *set* including tool, battery(s) and charger. In the short term you could just buy the compatible charger seperately. Sometimes you can find *anything* cheap on ebay or amazon if you are patient, but as far as average pricing goes, by the time you buy batteries and charger separately, you come close enough to the price of a new kit including a tool, to go ahead and get the tool too.

On a side note, what Porter Cable now calls a 20V battery, is the same 18V nominal voltage. They've just marketed it at higher voltage like Dewalt did while both have the same volt range as their older packs marketed as 18V whether Li-Ion or NiCd (or NiMH too for that matter).

Top
#4583463 - 11/24/17 09:03 AM Re: Porter Cable 18V Tools - Upgrade to lithium batt [Re: Reddy45]
Donald Offline


Registered: 03/21/04
Posts: 20472
Loc: Upstate NY
You need a new charger. Almost sure. The new tools are now brushless.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


Top
#4583493 - 11/24/17 09:29 AM Re: Porter Cable 18V Tools - Upgrade to lithium batt [Re: Reddy45]
IndyIan Offline


Registered: 09/23/08
Posts: 9093
Loc: Ontario, Canada
I was upgraded for free to Li when one of my Nicads bit the dust on my Rigid drill. They made sure I gave them the old charger and gave me a new one.
Functionally there is no difference between the two with the exception that the Li seem to hold their charge longer just sitting around, and the Li battery has more protection for low voltages. The battery will kick off a bit sooner when the voltage drops than the Nicads would.
I suppose the Li batteries are lighter but on a 1/2" hammer drill it doesn't matter one bit.
I wouldn't "upgrade" until the Nicads kick the bucket.
_________________________
07 Focus ZXW, 5spd manual, 206km M1 5W30
18 Outback 2.5 CVT 5km FF

Top
#4583534 - 11/24/17 10:07 AM Re: Porter Cable 18V Tools - Upgrade to lithium batt [Re: IndyIan]
Kira Offline


Registered: 08/19/10
Posts: 5266
Loc: Champlain/Hudson Valley
Stupendous, informative thread! Many thanks. Kira

Top
#4583627 - 11/24/17 12:23 PM Re: Porter Cable 18V Tools - Upgrade to lithium batt [Re: Reddy45]
BrocLuno Offline


Registered: 09/06/15
Posts: 5528
Loc: Kalifornia Kollective
I like my new Porter Cable "20v" units. Lotta usable power smile
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

Top