I accidentally dropped a flat auto flashlight in my residential apt dumpster

I tried to get it out for awhile, but I cannot get to the bottom of the dumpster and now it’s dark and I’m scared of getting bitten by raccoons. The trash pickup will come in the middle of the night while it’s still dark, and I’m worried that it could cause a fire when the trash company picks it up.

what should I do?

Hey everyone,

I’m trying to get a better understanding of the current state of sodium-ion batteries specifically for material handling and electric forklifts here in Canada.

I know that globally, companies like BYD have debuted sodium-ion forklifts, and Komatsu has been running tests with them. On paper, they seem like a massive win for Canadian operations especially because they handle freezing temperatures and cold storage way better than lithium or lead-acid without massive performance drops.

However, looking around domestically, it seems like 99% of forklift power suppliers in Canada are still strictly pushing Lead-Acid or Lithium (LFP) retrofits. Aside from some small-scale cell importers or off-grid stationary setups, I haven't seen any major Canadian material-handling dealers offering sodium yet.

Anyone have any experience with them or have had the opportunity to work with them. Looking for so insight

Thanks

Is it a ghost or an electronic errors?

There’s been a multiple year long debate now about whether using a powerful, rapid charging brick with a cheap chinese handheld, like this Miyoo Mini Plus here would damage the battery, due to said battery possibly not having the general safety mechanisms expected of any modern device sold in Europe or USA.

A typical post in r/miyoomini goes like this:

The user asks if they can charge it with their 100 watt c to c brick, and the comments are usually extremely divided, with half claiming that the c to c connection would simply be rejected and won’t charge (although mine does), and that if the battery does not support rapid charging, it would only “pull” so much as is needed and there won’t be a difference from using an old low power charger (except my console gets really hot on powerful chargers compared to low power ones, which is a difference and contradicts the claim).

The other half states that such a charger will cause either untimely degradation of the battery or worse, as cheap batteries usually lack safety measures and may accidentally draw an unsupported amount of power (artistic interpretation of implied accident attached for clout).

I’m a bit torn on this, as either group seems to be extremely confident with their answers, with no sign of consensus in sight.

I need your help to figure it all out!

Genuine question, I am entirely tech illiterate with this kind of stuff. If it is, where should I put it in between taking it to the recycling center? I do not have transportation until Sunday.

Is this a regular battery? Agm? Flooded? It's time to replace.

I have an idea for a “battery booster” in some products, but Ive only heard of this being used in EV’s, I feel like it’s an untapped system for power delivery.

Li-ion battery charges super cap-> product uses super cap for high current application -> can switch back to battery or recharge super cap.

Any red flags with damaging components? Or just too niche?

I get you don’t “make” more power but you can dump it a lot quicker and low internal resistance keeps it cooler.

So I just received the main part of my Halloween costume in the mail and the jacket has integrated LEDs in the collar powered by this included pack. It holds three 18650 batteries which are labeled as being 3.7V each and appear to be connected in series. Other than a power button on the back there doesn't appear to be any sort of BMS. My question is, since I don't have any 18650 batteries and they're not a simple Amazon purchase, would I be able to replace this pack for one with a more standard battery form factor? Or if not, can anyone recommend me some 18650's I can get?

I'd like to know what these batteries are and how to use them with which BMS. The measurements with the vernier caliper are 40 mm thick by 108 mm high. They come glued together in groups of four. I found them in a warehouse; several were glued together in a large box. One block of four cells delivers a voltage of 14.01 volts, and a strip of several of them delivers 85.4 volts. I'd like to know what they were used for and what the battery formula is, if they are LiFePO4, and how to use them without failing. Thank you in advance.

Hello everyone. If I want to bring my battery to storage voltage, should I start the process at 1A?

Is there any known way to get pouch cells of different chemistries? I saw some lfp and even NiMH ones but you never find them anywhere, not on used items sites, not on new battery sites, no devices use them (outside of EVs maybe?).

Is there a way to obtain them without having to find a supplier on some site like alibaba and beg them for just 1?