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diy solar

diy solar

Another reason not to buy from a nobody website

After disassembling, one pouch, completely burst, one is super expanded, and the other two are perfect! They have voltage still, and seem to be intact.
 
To answer the question above about all pouch cells, no probably 50% of them are pouch cells
 
Sucks to hear about the battery but that dude always came off as shady to me, just watching his videos I get shady vibes and his whole life is an acting job lol.
Jehu has trouble with social interactions, but some people interpret that as him being kind of jerky. He's aware of it and is working on improving.
 
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Everything on your site seems to be sold "as is" with no warranty. Even the BMS's. What on the site has a warranty?
Only things marked as "sold as-is" like packs for "harvesting" or "imperfect" packs, which is like 5% of items. Everything else is covered.
Every listing carries the disclaimer (for administrative ease): "These items are sold for DIY and Second Life purposes. Listings that are “untested” as sold as-is and cannot be returned, exchanged or refunded. Even when sold as “new”, “NOS”, or “like-new”, they may be in less than perfect condition."
 
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These used 50ah cells were $99 each? The BMS and shipping were about another $100? $600 for supposedly 250 ah? Someone just posted new Weize 12V 100ah batteries on Amazon for $249 (free shipping, new product with warranty) 200ah for $500.
 
image-jpg.115094

You are supposed to remove the pop tart from the foil before microwaving it.
 
Only things marked as "sold as-is" like packs for "harvesting" or "imperfect" packs, which is like 5% of items. Everything else is covered.
Sorry, but I see "no warranty" statements on every page. Here's what I copied from the Daly BMS description:

"These items are sold for DIY and Second Life purposes. Listings that are “untested” as sold as-is and cannot be returned, exchanged or refunded. Even when sold as “new”, “NOS”, or “like-new”, they may be in less than perfect condition."
 
@guysgt500
Welcome to the forum. I see you changed the title to something more appropriate. I joined a few years ago and soon realized that I could upgrade my pack with some reanonably priced cell. I have learned a few things along the way.
 
Sorry, but I see "no warranty" statements on every page. Here's what I copied from the Daly BMS description:

"These items are sold for DIY and Second Life purposes. Listings that are “untested” as sold as-is and cannot be returned, exchanged or refunded. Even when sold as “new”, “NOS”, or “like-new”, they may be in less than perfect condition."
I think you're right, maybe I should adjust it to say "listings that are specifically described as untested and sold as-is ... ". Thx for the constructive criticism, I'll share this with Jehu so his site can improve. Thx
 
So i would agree it's preferable not to physically alter the pouch in any way, but the fact that it ruptured there is not relevant to the actual cause of failure because the pouch wouldn't pressurize/swell enough to rupture it if nothing else were wrong.

With the incomplete information that's already been shared (which is not the total picture), it seems likely that one cell had a big problem, and pushing 10 amps through it caused the cell to swell and burst the pouch at the slightly weakened seam where it was modified. OP admits that he "should have realized something wasn’t correct. This battery was the only one out of the five I bought that was sitting a 11v" and done a little further diag before trying to push current through it.

This is an understandable mistake to make, but not one you can make while simultaneously claiming to be an expert or to have done nothing wrong. Oh well, live and learn, but don't grow the problem with grandstanding. I've probably made more mistakes than i have years left to tell about them, and I'll continue to screw up! If i could bet on it id be rich already.

I think the important thing is just to learn from it. It does seem that it should be covered under warranty, but any vendor is going to make you jump through at least a small amount of hoops to convince them that you're not scamming them, and i think anyone who is in a position where people email you and ask you to send them free shit and threaten to shit talk you in the streets if you don't, understands that you HAVE to put up reasonable thresholds or you will quickly go broke giving money to dishonest people. So you can't take it personally when someone makes reasonable requests for clarification.. you really can't say they weren't going to give you a free replacement under warranty until you give them the facts that justify it and they STILL don't do it. It doesn't seem like OP ever gave them the facts, so.. it's not 'no warranty', it's 'i wont give you free shit just because you want it, you have to give me a valid reason'.

Next time anyone gets a multi-cell battery with suspiciously low voltage, ESPECIALLY if the voltage is low by a number that correlates anywhere closely to the voltage of a single cell of that chemistry, take extra caution before making any current flow.
 
Next time anyone gets a multi-cell battery with suspiciously low voltage, ESPECIALLY if the voltage is low by a number that correlates anywhere closely to the voltage of a single cell of that chemistry, take extra caution before making any current flow.
Nahhh, just make sure to video it so we can all witness the fireworks!!!
 
Explosions, fires, serious injuries. The host gets progressively more disabled as the series unfolds.

I've been suggesting dangerous activities to @Will Prowse , he doesn't seem willing to go for them though. I think one of my last ones I suggested to him was testing a compressed hydrogen generator.
 
I feel bad for the op that this happened. The important thing is to learn.

The other thing is that forums have minor influence these days. Maybe 8 people will change their mind from the drama. :)

Heh, 30 years of badmouthing Optima agm's from those who don't know what they are doing, or purposely mistreating them / buying abused ones and then ranting hoping for a free replacement, hasn't prevented them from still being in business.
 
I feel bad for the op that this happened. The important thing is to learn.

The other thing is that forums have minor influence these days. Maybe 8 people will change their mind from the drama. :)

Heh, 30 years of badmouthing Optima agm's from those who don't know what they are doing, or purposely mistreating them / buying abused ones and then ranting hoping for a free replacement, hasn't prevented them from still being in business.

No such thing as bad publicity!
 
I feel bad for the op that this happened. The important thing is to learn.

The other thing is that forums have minor influence these days. Maybe 8 people will change their mind from the drama. :)

Heh, 30 years of badmouthing Optima agm's from those who don't know what they are doing, or purposely mistreating them / buying abused ones and then ranting hoping for a free replacement, hasn't prevented them from still being in business.
My take is that an 11V battery shouldn't be shipped to a customer.
 
My take is that an 11V battery shouldn't be shipped to a customer.
Not unheard of even with new batts. As explained, most are not supposed to be charged higher than 30% capacity. And now it rides in a train / ship / online warehouse where temps can be very hot driving the voltage down further. If the cells have slightly higher self-discharge due to being old-stock, it can make this a distinct possibility.

Instead of drama, the important thing being expressed here is that upon receiving such a low voltage batt by the time it hits your door, for the very first charge, use LOW current no more than .05C, preferably less, until the voltage recovers to about 12.5v and then hit it up with more normal current levels.

So what do we want - learn and recover, or drama that only 8 guys get a kick out of ? :)
 

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