Questions tagged [18650]
The 18650 tag has no usage guidance.
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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 ...
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18650 Cell (8800 mAh) accepts only 300 mAh on recharge
My ESP32 device uses a new 18650 until it is down to 3.3 V.
My charger draws current until it is again at 4.2 V. Its indicator shows that 330 mAh has been loaded. This is surprisingly far off the 8800 ...
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How to add charging to LED light running on 2s 18650?
I am new at this and was hoping for some guidance.
I currently have this setup for testing-
2s 18650 7.4V --> Constant Current Boost Regulator (XY-SJVA-4) --> 20W LED
I can't seem to find clear ...
- 11
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Powering Raspberry Pi and motors with same battery
I'm building a Raspberry Pi (2 model B) robot with two l298n H-bridge modules to drive four motors, and am using the charger board module pictured below (lx-lbu2c - 2.4a output) to charge two 18650 ...
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18650 cell will use ______ amps every _____mins?
I am looking at how to utilise the BQ77915 Ultra-Low Power Primary Protector with Autonomous Cell Balancing by TI, using eight 18650 cells, each with a BQ77915 IC allowing 3 series - 5 series cells.
...
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Reverse polarity protection for parallel connection of 18650 batteries
I want to use two Li-Ion 18650 batteries in the device. The batteries need to be connected in parallel and they can be removed from the device (holder).
The device itself is protected from incorrect ...
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How to get a stable 3.3V/2A output out of a single cell (18650 Li-ion) battery?
In my tiny quadcopter, I need to power a long range wifi card which take 3.3V/2A max as input. The quad runs off a single high current 18650 Li-ion battery.
Are there any chips or modules that will ...
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Is my 4s2p pack connections correct?
I'm planning to build my 4S2P battery pack using 18650 lithium-ion battery cells. I need to make sure my connections and my battery pack is correct and safe before I make the connections. Here's the ...
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How to monitor capacity of 18V Li-Ion battery pack? [duplicate]
I have been learning more about how battery packs work and are made. I have been playing around with this one: https://www.batteryspace.com/li-ion-18650-battery-18v-2900-mah-52wh-7a-rate-5s-s-...
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BMS abnormal behavior
I would like to power the lighting system of a small cabin using 3 DeWalt 18 V, 5 Ah battery packs. The system consists of six 10 W bulbs each (12/24 V) and a 20 W, 12 V spotlight.
DeWalt battery ...
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Replacing 18650 batteries by another brand batteries (similar specs)
I replaced the battery pack of my robotic lawn mower by a generic one bought on Amazon (quite expensive, but not as expensive as the original brand one that's sold at 110€!). The battery pack consists ...
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Is a TP5100 module redundant with "protected button top" 18650 cells?
I am going to use a TP5100 module in a device to manage two 18650 cells in a 2S configuration.
Are there any advantages or disadvantages to use "protected button top" batteries in this ...
- 10.7k
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Isolated two battery load/charging system (parallel 18650)
I am working on a project and wanted it to be very robust and user-friendly. To power said device, I had planned on using two 18650 in series (li-ion), like everyone else. The problem I had was that ...
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Charging two 18650 cells connected in series?
It is easy to charge a single cell or cells connected in parallel with a single TP4056 module.
This question shows why this can't be done with cells connected in series (short circuit of the cells).
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- 10.7k
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Protecting parallel 18650 cells
My son is doing an Eagle project where he is creating a solar charged LED light set up using two 18650 cells in parallel. We are working to ensure they are safely protected. From the research we have ...
