Teyleten Robot IP2368 Bidirectional 100w Fast Charging Module Buck-Boost Type-c Interface 4S Lithium Battery High-Power Fast Charging Board

IP2368 Two-Way USB-C Module - I definitely recommend this. Pros: 1. Will accept nearly any input via USB-C 2. The current can be adjusted by soldering different resistor values 3. The voltage can be adjusted by soldering different resistor values 4. For me, this is and has been the most reliable high voltage/current USB-C two way module out there. I've had a lot of issues some other DIY type builds (IP5368) like creating an arc when plugging in my iPhone scaring the contact. I've had one randomly fry itself, later could smell the burn. Some don't have good self management so little quirks like display charge level won't turn off or never shows correct charge/discharge levels. 5. I don't have any of the listed issues with this module, I have three that have been running strong. 6. Small form factor means I can always find a home or good placement. The USB-C port is also in a convenient location. 7. Other cool variation exist like those with XT60 ports. 8. Not sure how stable they are but I would think you could use these to directly power any DC device. Cons: 1. While it does serve as a great input output management, it does not have a BMS, so for batteries you will need in conjunction with a BMS. 2. It does get quite hot so you will need to compensate for cooling area/location, reduce current, or add heat sink - however this should be expected with modules like this. 3. Has one single port, this streamlines power management and reliability of the product. The negatives are justified and positives are really why I keep coming back to this specific module. I am building 16.8V batteries, this IP2368 chip allows me to make two sizes and modify the charge currents. The buck-boost makes it brainless to use out in the field (just as USB-C should be) You should always be able to charge your battery voltage, even at reduced current. Because it also manages USB-C out, you can get all the way up to 20V @ 5amp (subjective to nominal battery voltage). But this does mean I can use my 16.8V battery to charge my laptop which uses 20V. Attached photo of 4S battery - FNB48 shows 100W output possibility. Cost, usually around 16 bucks.

These work great, huge amount of power can flow in and out of these! My only complaint is the chips get hot as heck! I ordered miniature heat sinks to help dissipate the heat but they are holding up. If you get these you definitely need to find a method to keeping it cool, either heat sinks on the chips, or the best thing would be a aluminum housing where the chips make contact with the housing, then the housing would act like a big heat sink. Or install it in a housing with heat sinks on the chips with a fan blowing air across the heat sinks.. I think it's definitely worth the effort because this board can move 100 watts of power thru it in either direction.. would be awesome if the seller included or at least included a link to a cooling solution since having custom made aluminum housings aren't easy to get .

I'm using the IP2368 to charge 18V (5S) Li-ion batteries from Rigid. These batteries already have a built-in BMS. I needed to make the following immediate modifications: R7: Replace 13k with 18k to set from 4S to 5S R4: Replace 10k with 5k to set from 4.2V to 4.1V Cut trace feeding the 6201A regulator and placed 7.5V zener diode in series. This ensures that the Vin for the regulator is kept around 13V when a fully charged battery is attached. This is clearly a design oversight since the documentation suggests that 5S should be easily supported, so they should have chosen a linear regulator that can handle the voltage of 5S (or even 6S). Annoyingly, the IP2368 enters a “locked” mode the moment you attach a battery and refuses to discharge. As a hack, I (see schematic) attached a push button with a 510ohm resistor and 5.1V zener diode to produce a 5V rail that I feed into Vusb. This tricks the IP2368 into thinking there is a charge source and unlocks it. In order to prevent back-feeding (and destruction of the zener diode) when Vusb is higher than 5V, I added a Schottky diode. As a quality-of-life improvement, I added a 7-segment voltmeter for the battery, and a USB-C power meter. The IP2368 runs at around 95% efficiency, which means that it can still get quite hot. Suppose, you are passing 65W through it, then at 95%, then you’re still dealing with around 3W of waste heat to dissipate. I added a 25x25mm aluminum heatsink to spread the heat out. At 65W, it still reaches around 160F in steady state.

I like these modules. They require modification to run at 5s or 6s. They are not capable of 100w, maybe 90w with a heatsink. When plugging into high power devices such as laptop, the modules just resets repeatedly, will not charge a 100w laptop. I have tested with 4 modules with a very large 4s battery pack. This is a great module for 65w devices, not recommended if you want to actually draw 100w get the IP2366 which is similar but rated for 140w.

Works just as advertised! I recommend adding heatsinks to the board components, it gets very hot when charging at 100W.