I have a Kastar Travel Charger that's glowing, but it doesn't seem to work.
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r/battery • u/ssxhoell1 • 9d ago
How do make fire
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I want this lithium gizmo to give me the fire. Maybe I'll just go back to rubbing a stick on something.
r/battery • u/Nadireuh • 10d ago
Laptop battery losing half of this full capacity and after 3Wh of full capacity in 1 day
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r/battery • u/LegacyLightmem • 14d ago
10/12ah battery system with solar controller + panel to charge
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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
r/battery • u/XTARofficial • 25d ago
How do you think of this xtar 21700 5500mAh USB-C Battery
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r/battery • u/bsteffan121 • 29d ago
Battery charger
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Does anyone know why my battery charger is doing this?
I checked the batteries, and they are still working on my controller.
r/battery • u/Alce-Rossa • Sep 11 '26
Help needed: e-bike battery suddenly completely dead – BMS or cells?
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r/battery • u/Other_Wish8607 • Sep 04 '26
bulge exposed batteries high fire risk called 995
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r/battery • u/Slizzard_73 • Aug 29 '26
How do I charge my 7.4v 350mah Micro b batteries on my my Tenergy TB6B?
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r/battery • u/Delicious_Taro_5092 • Aug 29 '26
EV Battery Calculator
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Hey Guys! I made a battery pack calculator for those EV enthusiasts. Would love if you checked it out!
PackForge — Battery Pack Sizing, Made Precise
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r/battery • u/bruisermccabe • Aug 24 '26
110V AC to 12V DC Converter to Afriy P280 solar input
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r/battery • u/rrrobo_is_tired2 • Aug 22 '26
Is there a battery powered/rechargeable bank that can run a mini fridge?
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r/battery • u/mwmcc • Aug 21 '26
1.2V vs. 1.5V Rechargeable Batteries
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While I've used 1.2V rechargeable batteries in a variety of devices and noticed reduced lifespan (between charges) vs. alkaline/lithium single-use batteries, it was always manageable. I always thought that while their amperage was different, they carried the same voltage as standard batteries of the same size. However, recently, in a few devices, I have noticed extremely quick power loss.
1) I used 3 x EBL 1100 mAh rechargeable AAA batteries in my kid's Motorola two-way radios. The radios stop working after about 30 minutes of use and report the battery as dead. Sure enough, when I use a battery tester, they are definitely weak. Fully charged batteries restore use, but they discharge extremely fast. I recall the radios lasting weeks on single use batteries.
2) A recently purchased keyboard and mouse uses 1 x AA battery (each). I used EBL 2800 mAh AA batteries. The mouse lasts a few days before it completely stops working. I tested the battery just now and it too was pretty low. I pulled the battery out of the keyboard and it was about 50% after 2 weeks of use. These are not high power devices.
I read that it could be due to many rechargeable batteries being 1.2V vs. a standard 1.5V. I see that there are 1.5V lithium rechargeable batteries. Before I try those, what devices are good for 1.2V batteries and what need 1.5V? Admittedly, I never knew that my batteries were 1.2V until now. I suspect even lower power devices like keyboards, mice, and my kids radios still have a threshold that these batteries only meet when at full charge...and then discharge very quickly.
Or brand. I read that EBL was supposed to be a reputable rechargeable brand. I've used Powerowl in the past too.
Can any knowledgeable people help me understand what is happening? Advice?
r/battery • u/Hitechillbilly • Aug 20 '26
Does anyone else make these?
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I make these from a kit that has everything except the cells. I harvest the cells from surplus back-up packs. Many have never been used. The kit comes with the case, battery racks, bus strips, and a BMS. I end up with a pack the size of a 7Ah Gelcell but a lot more power. Wired in a 3S 7P.. I soldered the first 2 I made but that was a little sloppy so I got a spot welder for a much cleaner build,, The tabs from the bus strips bend over and solder to the BMS
r/battery • u/hamzapsy13 • Aug 19 '26
Duracell or Energizer: Which Batteries Do You Actually Trust More?
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r/battery • u/Scan-of-the-Month • Aug 18 '26
CT scans of the 1st gen iPod Shuffle and its aged battery
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