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

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 .

IP2368 Two-Way USB-C Module - I definitely recommend this.Pros:1. Will accept nearly any input via USB-C2. The current can be adjusted by soldering different resistor values3. The voltage can be adjusted by soldering different resistor values4. 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.

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 5SR4: Replace 10k with 5k to set from 4.2V to 4.1VCut 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 bought this so that I could build my own power bank out of some leftover li-ion cells.I went ahead and verified many of the parameters on this PCB.By default it is configured for a 4S string of Li-Ion batteries with a full voltage charge of 4.2v per cell.As someone else mentioned, you need to add a separate BMS for balancing and protection.This works great and is readily capable of powering my other USB devices including my laptop.I do not have the right tool to verify if it can do a full 100w, but it definitely can provide at least 65w. I imagine it can probably deliver 100w, but I have not yet been able to confirm this.Edit: Have bought a couple more, all work great.

Bought two of these. First one shorted out when connected to battery and got really hot. Second one worked for a bit, but then would only draw power from my phone/laptop. I also changed the R7 resistor on the second one to a 27K since my battery pack is a 6S, but I couldn't get 100W output. After I replaced the standard resistor, it wouldn't charge any devices.

Aunque nunca han llegado a 100W, cargan muy rápido mi banco de baterías y fue relativamente sencillo cambiar la resistencia para que sea de 3S en vez de 4S como viene originalmente. Son módulos muy eficientes y el calor que emanan es mínimo es controlable. Hice unos power bank y la carcasa imprimí en fibra de carbono. No me dieron ningún problema. Solo alegrias