Questions tagged [battery-safety]

For use on questions regarding the proper use of, maintenance of, and safety measures when using batteries.

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LiPo battery cell yellow discoloration at seam

I am using a LiPo battery to power a model helicopter. After my first flight with it i noticed a yellow discoloration around the seam of one of the cells. The battery isn't puffed up. The voltages for ...
XOHOO's user avatar
  • 13
1 vote
1 answer
43 views

How do I store a Li-ion pouch battery without any discharger or balancer?

I have a single-cell 3.7V 900 mAh Li-ion pouch battery and a 7.4V 30c 2s 850Mah Li-ion pouch battery. I want to store these two batteries (the manufacturer suggests I should store the 2s pack at 3.8V)....
cool bean's user avatar
0 votes
1 answer
86 views

Can I put lipo and li-ion batteries in series

I have two 3.7 volt 900 mAh LiPo battery, which I connected in series to provide 7.4 volts. But now I want 11.1 volts. Instead of buying another LiPo battery, am I able to put these two LiPo batteries ...
cool bean's user avatar
3 votes
2 answers
364 views

How to dispose of a burnt lipo battery?

It caught on fire while charging. I am not sure if it is fully "discharged" =] Is it safe to soak it in water first?
somebody4's user avatar
  • 131
2 votes
1 answer
37 views

Is it safe/good to store a Mavic Mini 2 LiPo battery at ~18% for an unplanned next flight?

They say it is best to store at ~60% but I personally don't want to spend CC for charging it first and then discharging my battery. Note: someone said, I can just charge the battery and unplug the ...
Ryan Arief's user avatar
4 votes
1 answer
132 views

Pros/cons of using a BEC in traditional nitro plane?

I have recently joined a local RC club, and one of the members gifted me one of his older planes. How old? 72MHz, nitro-powered, and with Ni-Cd batteries! Old school but it works. However, I'm ...
MGuzzi's user avatar
  • 41
4 votes
1 answer
93 views

Are drone batteries more prone to swelling than other li-ion batteries?

I have lithium ion batteries in my cell phones, laptops, portable chargers, and all sorts of devices. Sometimes I'll keep them off for a week or two and when I turn the device on, the charge may be ...
neubert's user avatar
  • 143
4 votes
1 answer
238 views

6s battery but one fail while balance load charging. Still safe?

I have a 6s lipo battery. When I plug in for load balance charging. One of the cell is not connected, seems to be some problem with the wire of the white connector not connecting. Any idea if this is ...
Joseph Lim's user avatar
3 votes
1 answer
299 views

Can you charge 1s and 2s batteries at the same time with the tinyhawk 2 included charger?

I just got a Tinyhawk 2. It came with 2 batteries (2s and 1s) and a battery charger that you plug in to USB. I know that you can't parallel charge batteries with different cell count, but it looks ...
Hannes Hultergård's user avatar
2 votes
1 answer
126 views

Can a lipo battery be charged with more than 0.5 amps? [duplicate]

Using ISDT q8 to charge my 1205mAh 6S lipo battery. I'm wondering if I can change the default settings and charge with more amps? Is this recommended or will it degrade the battery much quicker. Any ...
DroneDome's user avatar
  • 567
12 votes
2 answers
2k views

In what situations do puffy batteries pose a risk of ignition?

In this Drones and Model Aircraft SE question, Is it safe to fly LiPo batteries after they get "puffy"?, David O. asked if it is safe to use puffy LiPo batteries. Gparyani provided an ...
End Anti-Semitic Hate's user avatar
4 votes
3 answers
1k views

Can I use two 2s lipo batteries to power my FPV DJI goggles?

The FPV DJI goggles can take 7.4-17.6 Voltage. I am using a 2S 3000mAh LiPo battery. My plan is to buy another of the same liPo battery and attach it with a female to 2 male TX60 connector, making it ...
DroneDome's user avatar
  • 567
8 votes
3 answers
673 views

Will LiPo batteries deteriorate outside with the temperature changes due to day-night cycle?

I am new to the hobby and I'm concerned about LiPo batteries. I live in an apartment (this is Europe, blocks of apartments are the norm in my country) so I can not put the batteries in a dedicated ...
D1X's user avatar
  • 183
4 votes
1 answer
402 views

Why do LiPo batteries get puffy?

I have used many liPo batteries with my drones and other RCs over the years and have had a few of them puff up. What are the main reasons that LiPo batteries puff up? And are there ways to avoid LiPo ...
Jacob B's user avatar
  • 5,802
6 votes
1 answer
1k views

At what voltage per cell should I store a LiPo?

Some sources say you should store your batteries at 3.85V per cell, other says it should be 3.7V. My charger (ISDT Q6 Lite) on the "Storage" mode has a thumbs-up mark at 3.7V, probably indicating ...
Nikita Pedorich's user avatar
9 votes
4 answers
25k views

At what current should I charge a LiPo battery?

I have several different LiPo batteries which I use with my drones, many of them are different voltages and different capacities. How do I know at what current I should charge my drone LiPo batteries?
Jacob B's user avatar
  • 5,802
6 votes
1 answer
458 views

Is voltage sag safe if the voltage isn't too low?

I know that a liPo cell should never be below 3.0 volts, but can voltage sag during high throttle maneuvers damage the battery excessively even if the voltage it not below that level? And if that is ...
Hannes Hultergård's user avatar
2 votes
1 answer
2k views

How to charge LiPo batteries in series?

Is there any way to use my main charger, which can charge 2-6s batteries, to safely charge multiple 1s batteries in series? (assuming all of the batteries are the same capacity) How would I go about ...
Jacob B's user avatar
  • 5,802
5 votes
1 answer
1k views

Can I use LiHV batteries as normal batteries?

I have a small drone and the only batteries I can find that fit it are LiHV batteries. Can I use LiHV batteries like normal LiPo batteries? Can I just simply charge a LiHV battery to 4.2v and fly with ...
Jacob B's user avatar
  • 5,802
12 votes
4 answers
2k views

At what per-cell voltage should I land?

I built 5" quad and I'm using 4S 1300mAh LiPo batteries. My question is: at what voltage should I land? Let assume that I'm trying to land when my battery is as low as it should go without causing ...
Ziem's user avatar
  • 579
19 votes
3 answers
3k views

How long can a LiPo pack be kept fully discharged before storage charging?

There is a reason LiPo packs are recommended to be stored at a storage charge. It is commonly known that storing a battery fully charged reduces its capacity and performance. What about storing ...
Michał Trybus's user avatar
21 votes
2 answers
861 views

Is it safe to fly LiPo batteries after they get "puffy"?

Some of my LiPo batteries got "puffy" after a few months. Is it still safe to fly them, or should I safely dispose of them?
David O.'s user avatar
  • 445
11 votes
5 answers
1k views

How can I safely parallel charge my LiPo batteries?

I have multiple LiPo batteries that I want to charge up so I can get out flying as fast as (safely) possible. With my existing LiPo charger, how can I parallel charge multiple batteries at once?
Daniel Ballinger's user avatar
10 votes
3 answers
4k views

How low can I safely discharge a LIPO battery during flight?

What is the minimum voltage I can safely discharge a LIPO battery during a flight? For example, if I have a 3S LIPO battery, should I be aiming to land my RC plane before the battery gets below a ...
Daniel Ballinger's user avatar