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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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 ...
1 vote
2 answers
35 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. ...
2 votes
1 answer
49 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). ...
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1 vote
2 answers
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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 ...
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0 votes
0 answers
46 views

How to calculate the ESC and the LiPo?

I would like to know how many amps the ESC needs in order to use my brushless motor, and also which LiPo battery I'm going to need. I want the know how to calculate this, so that I can do it myself ...
3 votes
1 answer
82 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 ...
5 votes
1 answer
48 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 ...
3 votes
1 answer
80 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 ...
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 ...
3 votes
2 answers
262 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 ...
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3 votes
2 answers
38 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 ...
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4 votes
1 answer
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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 ...
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4 votes
2 answers
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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 ...
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4 votes
1 answer
60 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 ...
4 votes
1 answer
73 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 ...
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3 votes
1 answer
153 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-...
4 votes
2 answers
349 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 ...
2 votes
1 answer
88 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 ...
3 votes
1 answer
177 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 ...
2 votes
0 answers
44 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 ...
2 votes
1 answer
82 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 ...
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7 votes
4 answers
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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,...
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6 votes
1 answer
65 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 ...
12 votes
2 answers
1k 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 ...
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 ...
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8 votes
3 answers
588 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 ...
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4 votes
1 answer
190 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 ...
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3 votes
2 answers
214 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?
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3 votes
2 answers
225 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 ...
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4 votes
2 answers
501 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 ...
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6 votes
1 answer
585 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 ...
3 votes
5 answers
269 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 ...
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5 votes
1 answer
218 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, ...
7 votes
4 answers
8k 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?
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1 vote
0 answers
182 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 ...
6 votes
1 answer
299 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 ...
2 votes
1 answer
677 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 ...
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5 votes
1 answer
666 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 ...
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12 votes
4 answers
1k 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 ...
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3 votes
2 answers
637 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?
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8 votes
2 answers
386 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 ...
9 votes
3 answers
3k views

Do low temperatures damage LiPo batteries?

I'm wondering if low temperatures affect LiPo batteries in any way? Can colder temperatures damage the cells? Can I store my batteries in bat safe box outside, in cold/hot temperatures?
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0 votes
2 answers
95 views

Restore over-discharged LiPo batteries ~2.0V/cell [closed]

I have a LiPo battery which is ~2.0V/cell, how can I restore it safely? By "safely" I mean how can this be controlled as I know LiPo batteries can be dangerous.
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6 votes
2 answers
261 views

What are the conditions for LiPo battery damage from undervoltage?

It is widely known that Lithium-polymer cells are permanently damaged if their voltage drops below a certain threshold, around 3.0 volts, but I couldn't find much on the exact conditions and factors ...
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5 votes
3 answers
77 views

How long does a LiPo battery last and how do I know if it needs replacing?

I have an old LiPo battery, how long is a LiPo battery usually supposed to last? How will one know if it needs to be replaced?
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10 votes
2 answers
230 views

How do I safely dispose of my LiPo batteries?

I have an old LiPo battery that is nearing the end of its life, how can I dispose of it safely?
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8 votes
3 answers
2k views

Alternatives to LiPo batteries

LiPo is often the first choice of battery due to its high discharge rate and high specific energy (100 - 265 Wh/kg), defined as its energy per unit mass. In terms of these two characteristics, what ...
7 votes
1 answer
45 views

Methodology and sources for obtaining the correct replacement batteries for low-end RC aircraft

According to Mark's answer to this Drones and Model Aircraft SE question, I likely need to buy quite a few replacement LiPo batteries. Finding large LiPo batteries for expensive aircraft is usually ...
17 votes
3 answers
1k 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 ...
21 votes
2 answers
697 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?
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