Questions tagged [lipo-batteries]

Use in reference to Lithium Polymer batteries, commonly used for their excellent energy density and their ability to provide large currents.

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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
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2 votes
1 answer
34 views

What should a LiPo's voltage be at full charge?

How can I determine what the voltage of a LiPo should be when at full charge? Specifically, what should the voltage at full charge for a 2200mAh 20c 3-cell LiPo be?
KitfoxRon's user avatar
2 votes
1 answer
30 views

How 70C 2Ah batteries can have XT60 connector if it rated only for 60A current and not 140A?

Can it fit higher currents than nominal? Is it safe?
Robotex's user avatar
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1 vote
1 answer
75 views

LiPo battery voltage keeps dropping when connected to PDB

I have an F450 quadcopter frame with the integrated Power Distribution Board. In order to use this feature, I soldered the battery (XT60) and the four ESC (Dean-T) connectors. I tested the continuity ...
Teo Protoulis's user avatar
1 vote
1 answer
42 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
2 answers
237 views

A2212 1000kv Brushless motor keep beeping and twitching

I have bought an A2212 1000Kv brushless motor and a 30A ESC. I power this setup with a 7.4v 2s 30c 800mah LiPo battery. For the signal, I am using a DIY Arduino receiver and transmitter. When I test ...
cool bean's user avatar
2 votes
1 answer
63 views

How do I find the current my motor and speed controller will draw?

I am currently building an rc aircraft. I need to achieve approximately 20 minutes of flight time. I'm using a 1600w 320kv motor and a 80A speed controller. For 20 minutes of flight time at 80 draw I ...
cael gallagher's user avatar
1 vote
1 answer
543 views

What battery can I use for 1000kv brushless motor, that will be the cheapest?

I am using a 10 x 4.5 propeller for my A2212/13T 1000KV brushless motor with a 30A ESC. What battery will I need that will be cheap to power my motor alongside three 9-gram servos? Flight time is not ...
cool bean's user avatar
0 votes
1 answer
64 views

Why wont my 1000kv brushless motor work with a 10x4.5 propeller?

When I run my A2212/13T 1000Kv brushless motor by itself with 11.1 or 7.4 volts(i am using 2 lipo 3.7volts 900mah and a li-ion 3.7v 900mah in series that I connected with alligator clips) it runs fine....
cool bean's user avatar
0 votes
1 answer
83 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
1 vote
1 answer
355 views

Can poor soldering of ESC wires lead to low voltage draw from a Lipo battery?

Question: Would improper soldering of the power wires of my electronic speed controller limit the amount of voltage that my ESC draws from the Lipo battery? My situation: I have to solder an XT60 male ...
Sanchez2009's user avatar
1 vote
2 answers
169 views

Amperage of FC, ESC

There is something I totally don't understand about an amperage. According to spec. AIO FC has 5 A and 6 A ( 5 seconds). However, sometimes I see in OCD far beyond 5A and 6A. And FC, ESC are OK. ...
Albert Lyubarsky's user avatar
2 votes
1 answer
117 views

Rewiring 2S2P as 4S

I have LiPo battery that is in 2S2P configuration, however I need higher voltage (4S) battery for my project. From my understanding 2S2P battery has 4 cells same as 4S (2 in series and 2 in parallel). ...
KlemenPl's user avatar
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2 answers
453 views

How to maximize range with 2212 1400Kv motor and 30A ESC?

Premise, I'm not interested in speed or any type of sporty flight attitude, but only on range maximization I have 30A ESC, 2212 1400Kv motors 180W max with maximum efficiency current in the range ...
AndreaF's user avatar
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3 votes
1 answer
151 views

Can I use a MJX bugs 5w battery and/or charger for the MJX Bugs 5w 4k (upgraded version)?

I am wondering if I can use the MJX bugs 5w battery for its upgraded version (MJX bugs 5w 4k) as it seems they both are the same dimensions, so it can slide into the drone. Also, I am wondering if I ...
cool bean's user avatar
5 votes
1 answer
77 views

What battery/motor setup will replace this 1980s vintage glow engine?

I have a sport model (RCM Terrier, balsa/plywood construction covered with Monokote or Econokote stick/shrink film) that I built in 1984, and it has somehow come through multiple moves apparently ...
Zeiss Ikon's user avatar
4 votes
1 answer
228 views

Lipo battery with an ESC and a BLDC motor

I'm not sure if I can connect four brushless dc motors to my Lipo battery. I don't know how to calculate it. The brushless motor I have is the Turnigy L2210C-1200 brushless motor (150w) and the Lipo ...
Isaac Varas Britto's user avatar
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
3 votes
2 answers
1k views

Will wiring two batteries in parallel fry my drone?

Will connecting 2 lipo batteries of 3.7 V of 1500 mAh in parallel for a power source to a drone fry it? I understand the voltage will continue to be 3.7 V because it's in parallel. The current or Amps ...
Raster R's user avatar
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3 votes
2 answers
42 views

Need tips on getting this to fly properly

Learning the basic concepts. Yet to use a receiver and remote. Using a 3.7 v coreless motor, lipo battery and thermocol for the frame. I figured out how to connect the motors so that diagonally ...
Raster R's user avatar
  • 381
4 votes
1 answer
127 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
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4 votes
2 answers
134 views

Lift off without receiver

Can I make a small drone frame achieve lift using 4 coreless 3.7 v motors of 55000 rpm, 3.7 v lipo batteries having 40c without a receiver and remote. Motors are all alike. The propellers I have are ...
Raster R's user avatar
  • 381
4 votes
1 answer
105 views

Is my drone battery too large?

I'm new to the drone game. I'm building an Arducopter S500,(2015) with 2212 KV920 max 1200 gram, brushless motors, 10/45 blades, SimonK ESC's, Lipo 5200 11.1V battery, and GPS 2.8. My controller is ...
user124461's user avatar
4 votes
1 answer
92 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
3 votes
1 answer
403 views

All motors vibrating but not spinning?

I made a 3D-printed drone body and attached some MT2204-2300kv brushless motors. I have the standard yellow 30A ESC for each of the 4 motors. I also have an Arduino Uno running YMFC-AL and a FlySky FS-...
DragonflyRobotics's user avatar
4 votes
2 answers
854 views

Can a 45C 11.1V 4500mah battery damage a 30A esc if a motor draws less amps?

I am really new to this, I am planning to build my own tricopter drone which can be controlled via raspberry pi using wifi and use Arduino as a flight controller to communicate via USB. I am ...
Jawad Refaai's user avatar
2 votes
1 answer
100 views

Questions regarding drone components

I am wanting to build an ultra-light manned bi-copter from scratch, but I first must learn about the components, which is why I am here. I am working with a 43kv (24s rated, 192 max Amp) 70kg thrust ...
Überstrahlen's user avatar
3 votes
1 answer
296 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
0 answers
46 views

What are Pro and Cons of using Lithium batteries over LiPo batteries for quadcopters [duplicate]

I heard that some people combine some Panasonic 18650 (3400mah 3.7V) lithium batteries to make a battery for their drones, I was wondering of the advantages and disadvantages of using this type of set ...
Ahmed Abdulla's user avatar
2 votes
1 answer
123 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
7 votes
4 answers
5k views

LiPo 4S battery's output voltage higher than 14.8v

I have a LiPo 4S battery which the output should be 14.8v but it outputs, fully charged, 15.6v. The issue is that I have a voltage limit of 15v on a non-drone device that gathers data from sensors. So,...
aripod's user avatar
  • 71
6 votes
1 answer
78 views

LiPo battery power maximization

I have a 3S1P 2.2A 50C battery for a drone that I build. I have a charger that looks like this: https://www.alibaba.com/product-detail/RC-B3-AC-Lipo-Battery-Charger_60812527463.html At first, when ...
DragonflyRobotics's user avatar
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
664 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
389 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
  • 5,792
3 votes
2 answers
224 views

What LiPo C-rating is best for a small 65mm quad?

I have a small 65mm quadcopter which uses 2s batteries. Is there a recommended LiPo C-rating to get for a drone like this? Or is there some way to figure out what C-rating I should get?
Jacob B's user avatar
  • 5,792
3 votes
2 answers
416 views

Is there an advantage to having more LiPo cells in a low-power drone?

A major reason that high performance racing or freestyle drones use LiPo batteries with high cell count (6s rather that 3s or 4s) is so that the voltage won't sag as much. This allows high performance ...
Jacob B's user avatar
  • 5,792
4 votes
2 answers
866 views

Determining the mAh of 4S battery for a 3 inch drone

I have a 3" drone frame, flight controller that can take 3S or 4S LiPo, and 1507 4200KV motors. How do I find the right capacity of battery to purchase? Should I purchase 4S 850mAh or 4S 1500mAh? And ...
DroneDome's user avatar
  • 567
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
3 votes
5 answers
307 views

How to determine the largest LiPo I can use in a quadcopter?

Multirotors can usually operate with a larger battery than recommended for longer flight times but slightly less performance. However, there is a point of diminishing returns at which increasing the ...
Jacob B's user avatar
  • 5,792
5 votes
1 answer
485 views

Empty Cells on LiPo - Balance Charger or Battery Problem?

I recently opened up a box of 5 year old 3S LiPos which I had in storage. When I hooked them up to my Turnigy Accucel 6 80w balance charger, they mostly measured total voltages around 11v~. However, ...
Nathan Taylor's user avatar
9 votes
4 answers
23k 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
  • 5,792
1 vote
0 answers
251 views

What motors, battery and ESC to use for a drone of payload >50kg?

So I am designing this octocopter which can lift up a payload of more than 50kg, min 50kg for an intra-city package delivery drone. From what I figured, with 8 motors, the safest thrust needed will be ...
Ahmad Qhaliff's user avatar
6 votes
1 answer
440 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
  • 5,792
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
  • 5,792
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
3 votes
2 answers
1k views

Series or parallel connection for drone batteries?

What is the difference between adding two drone batteries in series vs a parallel connection for flying the drone?
Jacob B's user avatar
  • 5,792
8 votes
2 answers
849 views

Why do LiHV batteries degrade faster than an equivalent LiPo?

There seems to be a lot of anecdotal evidence, at least on YouTube, that LiHV batteries degrade faster than LiPos. Is this true? I own a couple whoops and only have 1s LiHV batteries since I can't ...
StevieRayBomb's user avatar