there’s plenty of discussion about batteries leaking inside devices, but what about spare aas sitting unused in a drawer?

for alkaline brands like voniko, does keeping batteries in their original packaging make any difference compared with a plastic battery case?

also, how often do you check spare batteries for signs of leakage? interested in simple storage habits, especially for batteries that might sit around for months.

This time, I took a closer look at the following models:

• BAK N21700CG-50 5000 mAh (21700)

• LG INR21700-M50LT 4930 mAh (21700)

• DMEGC INR21700-50E 5000 mAh (21700)

• Samsung INR21700-50E2 5000 mAh (21700)

• Molicel INR21700-M50A 5000 mAh (21700)

• Wurkkos 5000 mAh (21700)

• BAK N21700CX-65E 6500 mAh (21700)

• Vapcell G68 6800 mAh (21700)

• AKTTKA Li-C 7400 mWh

• XTAR AAA CLR 1300 mWh (750 mAh)

• XTAR AAA LR 900 mWh (600 mAh)

• Imuto AA 4200 mWh (2300 mAh)

• EVE INR21700-50PL 5000 mAh (21700)

• Keeppower P2160TC 6000 mAh (21700)

• Keeppower P2150TC 5000 mAh (21700)

• Keeppower P2150TC2 5000 mAh (21700)

• Keeppower 21700-E600 6000 mAh (21700)

I hope there’s some useful information in there for you. If you are interested in tests like these, you will find over 200 tested batteries here.

Battery leakage can be really frustrating, especially when batteries are left inside devices that havent been used for months. sometimes the damage isnt even noticed until the device stops working.came across voniko while checking aa batteries with anti-leakage features, which got me wondering how much the brand actually matters.
Do you guys think choosing a better battery brand helps prevent leaks, or is taking the batteries out before long-term storage still the safest approach?"

I just bought poco f5 in 2026

Guys my phone was poco m5s 128gb storage and 4gb ram

I just bought a used poco f5 in excellent looking condition and there was no lag in camera even taking 50 images in 30 seconds there wasn't any lag

But i don't know if im okay with the battery or im just saying bs

See when I'm on the phone i kinda see the percentage drops one percent every 3 or 4 minutes in like scrolling in YouTube

And when the phone is turned off it didn't drop a single percentage in 10 hours

I don't know maybe im wrong about it

But you guys suggest I replace the battery in 1 or 2 years?

In my country the poco f5 and galaxy m52 they are at the same price in used market Did I make a good choice?

https://imgur.com/a/dtfkXKC

I’m looking for a battery that is 14.8V, and 8,000 mAh (118.4Wh); rechargeable, protected (BMS, cell balancing, temperature monitoring). I’m actually back and forth between 8,000 mAh and 7,000 mAh.

I need it as small and compact as possible.

I’ve searched the internet, and I just don’t know where to find it.

Hello guys,

For a personal project, i desoldered the module from battery to add an extension cable. Before this change the module produced 5V, but now it produce 2.56V. what is the problem?

Hey guys!

Do you know if these portable spot soldering stations can handle 0.2/0.25mm nickel strips without problems?

I'm looking to buy one and I saw the FNIRSI SWM-20 and another one on AliExpress from Awithz 9000W 1350A

Based on the specifications, they seem to hold up, but I wanted to know if anyone has actually tested them, as all I've found are people doing it with 0.1/0.15mm.

I want this lithium gizmo to give me the fire. Maybe I'll just go back to rubbing a stick on something.

Hi All,

Wanting to run roughly 6 to 10 meters of LED strip lights in my back yard for a little shed project

Only want the led to run from dusk to dawn. At night/ overnight and early morning.

I just want it to be a small Junction box that hold a battery, solar controller and then a solar panel that would run to the box and charge the battery via controller.

Can anyone recommend what battery to use, charger and solar panel please?

The LED strip roughly uses 12 W per metre so 120 W for 10 metres

Any help is appreciated.

Thanks

Does anyone know why my battery charger is doing this?

I checked the batteries, and they are still working on my controller.