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Questions tagged [lipo]

Questions regarding Li-Po batteries (Lithium-ion Polymer, Polymer Lithium Ion or more commonly known as Lithium Polymer), including proper charging and usage.

0 votes
0 answers
32 views

Problem estimating LiPo battery life for powering BLDC motors

I'm trying to estimate the battery life for a system powered by a pair of LiPo batteries, in which the main loads are two BLDC motors. I estimated the battery life by dividing the battery capacity by ...
SkepticMind's user avatar
1 vote
2 answers
106 views

ESP32 PCB Review [closed]

I am currently designing a PCB to be manufactured. This version is my attempt at a working prototype. I am new to PCB design but am open to accepting any help I can get! My part is meant to function ...
AmateurEnthusiast's user avatar
0 votes
2 answers
128 views

How to correctly power an ESP32-H2 board with a battery

I'd like to power my ESP32-H2-DevKitM-1 board with a 3.7 V, 2000 mAh Li-po battery. For this I think I must use this pin: Battery-3V3 The above picture is from the Pin Layout section of the ...
Laboratorio di Robotica e Mecc's user avatar
0 votes
1 answer
60 views

LiPo charger with load sharing

I'm trying to make a LiPo charger + load sharing module that is mostly based on the popular TP4056 charger modules, this is my schematic: I've made the prototype and the charging and protection part ...
Razero's user avatar
  • 199
0 votes
2 answers
112 views

Can I charge my 3S2P 18650 battery (12.6v) with a normal 12v power adapter if I use a BMS with built-in balancing+protection? [closed]

First off, I would like to stress the fact that I am no electrical engineer or anything of the sort, just a hobbyist that is into this kind of stuff. So please bear with me, as I know a few things ...
Respoda555's user avatar
0 votes
2 answers
87 views

Can I safely operate a DC motor at 40% higher voltage than nominal?

I'm aware that you can power a wound motor (DC or even stepper) if you limit the current inside the coils. You cannot just apply a higher DC voltage to them. I'm using a DRV8871 to control a VN-C1 ...
Mark's user avatar
  • 1,225
0 votes
0 answers
38 views

Modifying Li-po and NiMH batteries

I have three 2s 7.4V LiPo batteries, two balance LiPo chargers that can charge 7.4V/11.1V 1s-3s batteries, and soldering tools lying around, so I'm wondering: Can I convert the three 2s 7.4V batteries ...
Beachy Boys's user avatar
0 votes
0 answers
29 views

How best to charge a 120 V series assembled Li-po?

I purchased ten 12 V, 30 Ah batteries to be run in series up to 120 V. The problem is that they each come with a 12 V, 3 A internal BMS. I assume I must disconnect their internal BMS as the combined ...
Nick D. 's user avatar
1 vote
2 answers
52 views

Do I need a buck IC to get 3.3 V, or a buck/boost, or an LDO?

The voltage supply of my FPGA and sensors circuit is 3.3 V. If I use a Li-po battery with 3.7 V nominal voltage and 3 V discharge cut-off voltage (the LP-803860 3.7 V, 2000 mAh with PCM), do I need a ...
NihelKh's user avatar
  • 11
0 votes
0 answers
29 views

3S LiPo Battery charging for Raspberry Pi robot project

The Project I have build a Raspberry Pi based robot with a RPi Camera to help me learn about computer vision and obstacle avoidance. It is powered from a 3S LiPo Battery that sends its power to a DC-...
SaltySparks's user avatar
0 votes
0 answers
21 views

Power distribution PCB and Li-po batteries

I am hoping to work on a project over the summer and it requires a decent bit of current. I ended up going with two 7.4 V, 5400 mAh batteries and I was planning on running them in parallel. With this ...
msalaz03's user avatar
2 votes
2 answers
144 views

Battery life of Li-Po battery if it is under constant charging

This question is to clear my confusion because I cannot find a logical answer. Say a vehicle is installed with a vehicle tracker ...
Awais Saeed's user avatar
3 votes
2 answers
331 views

Powering a Raspberry Pi Zero with a Li-po battery

I want to design a circuit to power a Raspberry Pi Zero using a single-cell Li-po battery (3.7 V). I'm working on a portable hobby project that's required to be battery powered and allows recharging ...
Amir Rachum's user avatar
4 votes
1 answer
303 views

Hall-effect sensor PWM jitter from switching converter

I am designing a circuit to power two magnetic sensors using a Li-po battery (nominal voltage = 3.7 V), DC-DC boost converter, and then either an LDO linear regulator or a buck converter to generate a ...
rtx_q505's user avatar
0 votes
0 answers
34 views

Li-po battery: determining compatibility for replacement battery and charger

I want to find substitute batteries for a pair of heated boots (heating element in the boot sole) with larger battery capacity for longer operating time. The boots came with two 8 V, 2600 mAh ...
pete's user avatar
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