The speaker is discussing the challenges and solutions in using lithium-ion batteries and chargers for home projects. The speaker has been using a variety of power modules, including BMS, chargers, and boost converters, and has found that they work well together, providing a constant voltage and protection. However, the speaker is facing a problem with the current output. The batteries, which are 4.2V lithium-ion batteries, can easily provide more than 10 amps, but when coupled with a charging and protection module like the TP40 56, the current output is limited to 2 amps, which is not sufficient for many of the speaker's projects.
The speaker is looking for a solution that allows them to use a USB to charge the batteries and also have a high current output. They discuss the limitations of the TP40 56 module, which provides overvoltage protection but lacks low voltage protection. They also mention the need for a BMS (Battery Management System) that can handle the current requirements of their projects.
The speaker suggests a combination of the TP40 56 and a 10 amp BMS, but they couldn't find such a product in the market. They discuss different modules they found on AliExpress, but none of them met their requirements. They then propose a solution by modifying a loading module, adding a DW01 integrated device and changing the MOSFETs to support 10 amps.
The speaker also discusses the possibility of using a 2S or 3S pack or more, but still wanting a USB charger. They suggest a balanced BMS connected to + and -
1. The speaker has a problem with a specific type of battery and charger.
2. The speaker uses a variety of power modules including BMS, chargers, and boost converters for their home projects.
3. The speaker's home projects require a constant voltage and protection.
4. The speaker has a project on how to make a charger with a BOOST output.
5. The speaker's problem is with the current output of the charger and protection module.
6. The batteries, which are 4.2V lithium ion batteries, could easily give more than 10 amps.
7. When coupled with a charging and protection module like the one based on the TP40 56, the current output is limited to 2 amps.
8. The speaker wants to use two batteries in series and charge them with a USB.
9. The speaker is studying different modules, BMS, chargers, and what NOT to do.
10. The speaker likes the charger because it's easy to use, has a USB connector, and does not require anything else.
11. The speaker's problem with this module is the current.
12. The speaker's project requires more than just 2 amps.
13. The speaker is considering using a Lithium Ion battery with a maximum voltage of 4.2 V and a minimum voltage of about 3 V.
14. The speaker is considering using a charger like this to ensure these values are not exceeded.
15. The speaker is considering using a specific BMS to achieve a decent current.
16. The speaker is considering using a 1S BMS, like this one.
17. The speaker is considering using a combination between the TP40 56 and a 10 amp BMS.
18. The speaker is considering using a module with a USB Type C connector that is used for both input and output.
19. The speaker is considering using a module that has a battery level indicator with some LEDs, a button to turn the output on or off along with a boost converter to increase the output to 5V.
20. The speaker is considering using a module that can only charge the battery but has no protection.
21. The speaker is considering using a module with a different driver and also a boost converter to raise the voltage to exactly 8.4 V.
22. The speaker is considering using a module that comes for 2S, 3S, and even 4S battery packs.
23. The speaker is considering having just one PCB with this converter along with the BMS part, so they would have a complete PCB, charger, USB connector, and also protection with high current output.