[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself

View post   
File: 103 KB, 640x640, VANON-For-Dewalt-20V-4000mAh-Li-ion-Power-Tools-Replacement-Battery-for-DEWALT-DCB200-Black-4.jpg_640x640.jpg [View same] [iqdb] [saucenao] [google]
1630317 No.1630317 [Reply] [Original]

Update time guys.

I bought a couple vanon 4.0 ah batteries for my DeWalt tools about 4 months ago and have been using and abusing them on job sites since then.

The first thing of note is these battery's were actually 3.0ah as marked on the cells inside 1500 mAh in two banks.

They were as well constructed as the DeWalt batteries I had that I looked inside. Which were a 1.3 ah and a 2.0 ah xr.

Performance wise they did great until last week now they barely hold a charge draining the battery with the flashlight in about 30 minutes and getting around 5 minutes of cut time on the sawzall.

Durability was excellent. They've been dropped dozens of times from approx. 15 feet and twice from 45 feet. The cases held up besides deep scoring from use. The internals remained intact no damage from any use.

At 4 months of heavy use everyday I would say these battery's are an okay value. I wouldn't buy them again as stolen batteries can be had off Craigslist and OfferUp for $10 an ah. So $40 for a real new DeWalt 4.0 ah battery. However for the home user they seem like great batteries. I believe they would last just as long as real batteries in that usage as they'll be left for storage for months at a time.

Overall it's world's better than no battery. But it's not a replacement for the real deal.

>> No.1630332

>>1630317
Were they name brand cells? Did they look like they were used? When that fag AvE took apart one of those knockoff DeWalt cells, he found 10x 2000mAh Sony cells (4.0Ah) despite being marked as a 3.0Ah battery pack. And he said the cells looked like they were spot welded in a pack before, almost like the chinks were taking dead packs from whatever and recycling the good cells. He tested them though and they ended up being really close to new cells.

So I’m wondering if yours was similar, recycled cells from dead laptop backs that had some charge cycles on it, or cheap new cells with shit longevity, or good cells with a shitty protection system that killed them,

>> No.1630346

>>1630332
Brand new cells made for vannon they had lg markings.

>> No.1630404

>>1630346
So maybe shitty protection?

There are some brands where the protection is built into the tools and chargers rather than the batteries themselves. The HF Bauer 20V packs are like that, and the Ridgid 12V is the same (although the 12V makes more sense because it’s only 3 cells to balance and they need the batteries to be compact to fit in the handles). I imagine if you bought knockoff chink batteries for a brand that used that system, they would last almost as long as OE provided they aren’t trash cells.

>> No.1630606

>>1630404
They have a basic under voltage protection circuit and overcurrent fuse

>> No.1630614

>>1630606
That’s not all there is too it though. Temperature matters a lot when you’re running them hard. Plus the balancing, I have heard that about cheap protection boards saying they’re not very good at all with unbalanced cells. So if you got a pack using the used or crappy cells and one of them wasn’t charging or discharging the same as others, you could’ve been fucking all of them when you’re charging 4 cells to 110% as the 5th cell is only at 60%.

>> No.1630820

>>1630317

yes you better off buying up junk packs and rebuilding with better 18650's