Mboards introduces the all new: Rechargeable 18650 house/car fire starter, now made in the US!
1 Like
i don’t think a battery like this deservers a “in fairness”
3 Likes
Hahaha, love it!!!
1 Like
I’d say compared to the others posted in this thread, it may. There are some near-literal dumpster fires being built. At least that one wasn’t on fire yet. 
3 Likes
Looks like a state-of-the-art esk8 battery.
From 2016. Much safer ways have been found since then. This is unsafe and not flexible, not even a tiny bit, and hasn’t good vibration resistance either. This would work great potted in epoxy and a hard enclosure on an ebike and limited to like 40A maximum… but probably not on any esk8.
7 Likes
It’s not that bad, no flex, the welds looks a bit weak but coming from Mboard I would expect worse
1 Like
There is no insulation between P-groups. If that battery flexes, the welds can pop off the end cells in each P-group.
4 Likes
Yeah, but we have seen worse from MBoards, so at least ones like this one on a stiff deck have a slightly lower chance of fire
2 Likes
There could be a rating system that uses 
to signal the probability of fire in an eskate context. Out of five, maybe?
That pack scores a I’d say.
For a very well built battery, one could use 
Once it passes the acceptable threshold of safety.
10 Likes
I say we adopt this fine system.
13 Likes
its more like this 
6 Likes
Firstly I love this system, but I also think I have a beautiful example of a 4-5 pack sitting on a shelf here. When I get the balls to take it apart I’ll show you folks
So I’m building a new battery for someone’s Prototipo. They bought it, it showed up, and didn’t work properly. They reached out in the DIY NYC Eboarding chat and a few guys chimed in with things to check. After some back and forth, the person brought the board over, opened up, and I checked around with a meter. One of the groups was dead, reading 67 millivolts.
After talking about it, they opted not to only replace the dead P group, since he wasn’t thrilled with the condition of the battery build itself after looking at it.
Anyway, I’m making a new battery for it, and I’ll set it up and balance the wheels so it rides well enough.
Below is what I’m disassembling.
I rate it:
9 Likes
Aaaaaaaa whyyyyyy
Those welds look like they’re barely holding on
4 Likes
I lifted the last of the groups out, and oddly enough, the series connecting folded nickel popped right off.
I’m lifting the rating to:
/2
11 Likes
Poor 40T cells, they didn’t deserve such treatment
4 Likes
The new adaptive 3 wheel drive. If the load is to high it automatically deploys a third wheel for more traction. Only available on crappy mounts that don’t quite fit mbs trucks.
56 Likes
This literally made my day. I got an honest laugh out of it. Thanks for sharing!
7 Likes