A LOOK INSIDE DEWALT’S NEW COMPACT LITHIUM ION BATTERY DC9181

Archived from the Tools In Action forum (Dewalt). This thread is read-only.

kanxrusMember since Jan 2009Sep 22, 2009 8:14 PM CT

[External image (www.dewaltownersgroup.com), not copied]

picrthisMember since Oct 2009Oct 10, 2009 8:44 AM CT

Question: Are those Nano Phosphate batteries by A123? They don’t look like they are, looks like the same type of 18650 cells you see in other Li-on’s devices.

kanxrusMember since Jan 2009Oct 10, 2009 10:35 AM CT

These are new Sony Iron Phosphate LiFePO4 batteries. http://dewaltownersgroup.com/index.php/topic,210.msg497.html#msg497

picrthisMember since Oct 2009Oct 10, 2009 10:27 PM CT

Thanks for the reference, did you take a pack completely apart? and if so are the batteries soldered in place? it almost looks like in the picture they snap into the plastic battery holder……now that would make it very easy for a hobbyist to replace them down the road.

Thanks

kanxrusMember since Jan 2009Oct 11, 2009 10:35 AM CT

I did not take the pack’s completely apart, however for someone who has electronics/soldering skills could probably replace these packs with no problem. ALTHOUGH DOING SO WILL MOST LIKELY VOID ANY SORT OF WARRANTY!

MadtecMember since Jun 2010Aug 31, 2010 8:39 AM CT

FYI……..

DeWalt launch the new compact 14.4v battery DE9141 for EUR, it comes with the same Sony cells used in the Compact 18v. This is a 5 cell pack and it literally out performs most 1.3 and 1.5ah 14.4v competitor packs.

kanxrusMember since Jan 2009Aug 31, 2010 5:25 PM CT

Outperforms how?

MadtecMember since Jun 2010Sep 1, 2010 8:40 AM CT

JC wrote:
Outperforms how?

I cannot go into specific details but the battery can work in extremely cold enviroments where as the competition will not even work.

kanxrusMember since Jan 2009Sep 1, 2010 8:46 AM CT

Does this mean the same for the DC9181?

MadtecMember since Jun 2010Sep 1, 2010 9:20 AM CT

JC wrote:
Does this mean the same for the DC9181?

Yes, but different software.

irishroeyMember since Aug 2010Sep 11, 2010 9:17 PM CT

i eventually recieved my new impact with li ion batterys they came with a sticker to charge for 10 hrs firat time wats this for anyone any info

kanxrusMember since Jan 2009Sep 12, 2010 7:09 PM CT

When I bought mine, they had green stickers on the lithium ion batteries as well. It’s the initial “break-in” charge.

MadtecMember since Jun 2010Sep 13, 2010 9:39 AM CT

Li battery packs are shipped dormant; that means when you first get it the battery will not work in the tool, you have to place it in the charger to activate.

golden valley const.Member since Nov 2010Feb 3, 2012 1:20 PM CT

Am I seeing this right, 6 cells? So 19.8V nominal? Phosphate batteries are 3.3V per cell nominal.

And the new 20V MAX packs are 18V nominal! Seems backwards to me.