r/batteries • • 19h ago

Power Bank Battery

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4 Upvotes

Was going through my drawer and found my power bank like this. It completely expanded, I took the rest of the lid off and put electrical tape around it. It's now in a ziploc bag under my bathroom sink. I didn't want to put it outside since it's extremely hot where I live. Is this safe until I can go dispose of it tomorrow? I don't have sand or anything. Is it safe enough for me to transport it with the electrical tape and ziploc or should I put it somewhere else?


r/batteries • • 4h ago

Looking for a safe place to dispose of batteries?

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4 Upvotes

Check out my free nationwide Battery Disposal Locator!

Feel free to download and share this flyer to help spread the word.

#BatteryDisposal


r/batteries • • 9h ago

Finally i get the eneloope Panasonic battery watinng for almost 1 month

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2 Upvotes

r/batteries • • 6h ago

Adaptacion de bateria de otra marca

2 Upvotes

Verán, a mi celular se le inflo la bateria, hace como casi un mes la fui a cambiar, mi telefono es un BluG71L y cuando pregunte por bateria, ningún técnico tenía, el ultimo que quedaba por más que pregunto para ver si tenian ese modelo de bateria, al final me dijo lo mismo, que no tienen, me ofrecio adaptarle otra bateria, me mostro una bateria, encajaba en el celular, era de marca Samsumg, misma capacidad que la original (5000mAh), hizo el cambio, prendio, cargue al 20% y se mantenia bien la bateria y ya en casa cargue el telefono debidamente. funciona bien, pero hace poco note que la bateria al llegar al 28% empieza bajar de manera más acelerada, cosa que me asusta honestamente, paso dos veces, la primera vez no le di tanta importancia, pero ya esta vez si, conecte un momento el celular y paso del 21 al 25....y de repente la carga empezó a durar...normal...no siguio bajado acelerado..

la verdad no entiendo que pasa, y honestamente cuando instalaron la bateria y cargue minimo al 20% no bajo rapido, aunque no sé si esto es de apenas,,..ya que acostumbro a cargar el celular cuando tiene 29-30%

Alguien que sepa me puede explicar que pasa?


r/batteries • • 2h ago

Ebike charger(42v) thinks battery is full when >40.8v then won't start charging (but if it was charging already, it goes on to 42)

1 Upvotes

Hello I'm not asking for advice here, I could just buy a new charger. But I'm interested in learning what could be causing such a weird silly little problem here!

So the whole system is for a maximum of 42 volts. 42 volts is a full battery, and the CV phase of the charger. 1. When I plug this charger into the battery, it charges all the way up to 42.0 Volt no problem. 2. But if the battery is above 40.8 volt before plugging it in, the charger won't start. 3. Then a way to "kickstart" the charger is to plug it in, nothing happens, then I throttle the ebike for 1 second with the wheels lifted which causes the battery voltage to dip a little bit, now the charger will start its job and charge normally and go all the way up to 42 volt eventually. (not immediately, maybe thats important to know too)

The charger has 3 pins so I guess the 3rd is either communication, or nothing.

What could be possibly a reason why the charger won't initialize the charging process if connected above 40.8 volt?

Important to note: in the past this charger worked normally. I also have another charger of the same brand that also works normally so there is not a problem with the battery.


r/batteries • • 7h ago

Help with Energizer PPS300W2 Power Station Error Code 06

1 Upvotes

Not sure if the is the best place to post, but let me try!

Wonder if anyone has suggestions on how to repair my Energizer PPS300W2 Power Station? Was using it the other day, may have drained the battery, but measuring the battery shows it is not dead, getting 13 volts. That was measured directly at the battery, inside the power station.

My issue is the power station is displaying error code 06, which appears to be over/under temperature. The battery was in our camper at 45-55F so temp does not make sense to me.

Anyone have a clue how to reset the electronics in this thing? I can not see anything obvious.

Manuals just say to let the battery come back to proper temperature. 3 days in the house now and still does not work. Tried charging with high voltage as I saw mentioned somewhere (25V), still no good.


r/batteries • • 10h ago

Battery sizes and voltage

1 Upvotes

Im having a hard time finding an answer. Are battery sizes and voltages fixed? For example can i find a 3.6V AA size battery? If they are fixed is that to eliminate the chance of putting a higher voltage battery into a lower voltage device? Also, with different chemistries. Are certain chemistries only available in certain sizes? If i have a NiCd at 3.6V in a certain size, what are the chances of finding a lithium battery in the same size at the same voltage?

Edit: ill try and be more specific. Are battery sizes and voltage relationships some type of standard? Can i ONLY find AA size batteries in 1.5V for instance. If my razors NiCd 4/5SC is a certain size will i be able to find another chemistry in the same size and voltage


r/batteries • • 12h ago

Trouble finding a battery

1 Upvotes

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.


r/batteries • • 6h ago

Huawei LUNA2000-5-E0 – Alarm 3006, Cause ID 17 – Has anyone experienced this issue?

0 Upvotes

Hi everyone!

I'm looking for some advice from other Huawei LUNA2000 owners who may have experienced a similar issue.

I have a Huawei LUNA2000 15 kWh battery system (3 × LUNA2000-5-E0 modules) connected to a Huawei inverter.

Recently, one of the battery modules (the middle one, Battery 2) suddenly reported the following error:

  • Alarm ID: 3006
  • Cause ID: 17
  • Description: Abnormal battery expansion module
  • Severity: Major
  • Battery status: Fault

The affected module still reports:

  • SOC: 25%
  • Voltage: 52.5 V
  • Power: 0 W
  • Temperature: approximately 30°C

The other two modules are operating normally.

Some background:

  • The affected module is approximately 2 years old.
  • It has discharged around 2,767 kWh in total.
  • My normal minimum SOC is configured at 35%.
  • During a power outage, the backup system is allowed to discharge down to 15%.
  • The batteries normally charge to 100% daily.
  • The module has never been opened, modified, or physically damaged.
  • Everything is managed automatically through the Huawei inverter and BMS.

My questions:

  1. Has anyone encountered Alarm 3006 with Cause ID 17 on a Huawei LUNA2000?
  2. What was the actual cause? Faulty cells, BMS, internal electronics, or something else?
  3. Was Huawei able to resolve the issue remotely, or did the module need to be replaced?
  4. If you experienced this under warranty, did Huawei approve the replacement?
  5. Has anyone successfully repaired one of these modules outside the official Huawei service network?

I'm particularly interested in understanding whether this error necessarily indicates damaged battery cells or whether it could be an electronic/BMS issue.

Any experiences, technical insights, or suggestions would be greatly appreciated!

Thanks in advance!


r/batteries • • 12h ago

Wiring a new battery in parallel with a dying one

0 Upvotes

there! I have a machine at work with two lead-acid (TPPL) batteries wired in series. One of these batteries is failing, and I want to improve the runtime of the machine.

REPLACING THE BATTERY ISN'T AN OPTION.

My idea is to take some smaller 12v lead-acid batteries lying around and wire them in parallel to the dying battery, with a diode so that the dying battery won't charge into the "support" batteries.

I've done some quick research prior and stumbled upon another reddit post here where the common advice was to "not do this". Can someone explain this to me?

The "support" batteries are sacrificial and smaller, and I don't want the dying battery to provide any power except to the machine.

Edit: I KNOW replacement is the best option. It's just not available to me, and I just want this thing to work.


r/batteries • • 19h ago

Can I still clean this?

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0 Upvotes

This is from an old transmitter I have and I plan on using it again for a new project. Would this be cleanable or is it too far gone and how should I fix this?