All Questions
Tagged with protection lithium-ion
43
questions
2
votes
1
answer
51
views
Protection circuit for a 12 V Li-ion battery pack
Is there an integrated circuit or a conventional circuit topology to monitor edge conditions of a 12 V battery pack without measuring individual cells within that unit?
A conventional BMS or battery ...
- 2,432
1
vote
1
answer
27
views
One-Way charging connector for 4S Battery
I want to use a connector to charge the 4S Battery of my underwater robot. The connector is the 6 Pin hybrid Cobalt Series connectors from BlueTrail Engineering (https://www.bluetrailengineering.com/...
- 13
1
vote
1
answer
75
views
Is it OK to have two protectors for a single Li-ion battery?
I have a question regarding a Li-ion charger/protector module. The board I'm using a fairly standard Li-ion charger/protector module.
This module manages the charge using a TP4056 IC and has a built-...
- 11
3
votes
1
answer
106
views
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 ...
2
votes
3
answers
383
views
2S Li-ion charger+protection with reverse protection
I'm designing a device powered by two Li-ions in series and I'm struggling with the charging and protection of the batteries. One of the requirements is to avoid battery packs, the individual cells ...
0
votes
0
answers
78
views
Is this a functional and reliable Reverse polarity protection?
Guys, I am trying here to design a UPS controlling board, I designed this circuit and it was to some extent functional and it draws approximately 16mA - 20mA (I don't want to use the traditional one ...
0
votes
0
answers
46
views
Is a snubber diode the correct solution? Preventing overload protection faults
I have been troubleshooting a strange problem for a while now and I think I've settled on the right solution.
I have an off-the-shelf 12v lithium-ion battery (12v 10A max output) with integrated over-...
0
votes
2
answers
2k
views
How to adjust a 3S BMS to connect a 2S Lithium ion battery pack to it?
I have a 2S Lithium ion battery pack and a 3S 18650 BMS protection board. I need to connect the pack to the board. While researching, I've noticed that this can be done by connecting a component ...
1
vote
0
answers
32
views
Li Ion cell charging and thermistors
I am designing a circuit to charge a small Li Ion flat cell with a capacity of around 300mAh. I want to charge it at around 75mA to 150mA max in the CC part of the cycle. It will always be charged ...
- 11
0
votes
0
answers
80
views
How can I connect ( and if required isolate a single module ) multiple LI-ion battery modules(with different SOCs) in parallel sharing common load
1.Need to connect two or more Li ion battery modules(having different SOC levels) in parallel with the help of bidirectional dc-dc converters sharing a common load(say 48V).
2.Isolating individual ...
0
votes
2
answers
273
views
Protection circuit module for not only “deep” discharge protection
I have to ask about protection circuit module, like BQ297xx, AP9211, AP9101 etc.
As I see, protection circuit module is used to protect li-ion cell from deep discharge - so if the li-ion cell has, for ...
0
votes
1
answer
287
views
Powerbank and Lithium-ion charging/discharging module stop working under a current supplied to the load
I have made some tests with a HX160S3 26800mAh power bank and a 134N3P charging/discharging/protection/DC/DCconverter module and I have made kind of the same observation: when they are in discharging ...
- 43
0
votes
1
answer
186
views
AP9211 battery protection
I am planning on using a Diodes Inc. AP9211 battery protection circuit for an IoT project, and I have a question regarding usage.
The AP9211 will be embedded in the PCB, while the battery will be ...
- 325
0
votes
0
answers
756
views
How can I use 2 TP4056 to safely discharge 2 18650 cells in series
I am new to electronics. I have made a robotic car type thing with arduino and L298N and I want to power it using two 18650 ...
- 87
-3
votes
1
answer
5k
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Using 5V, 2 A charger to charge a 7.4 V, 5000 mAh Battery
I am designing a product that has a 7.4 V, 5000 mAh battery (Two li-ion cells connected in series). Is it advisable to charge it with a 5V, 2 A charger?
If no then what are the issues which we may ...
