Thx, I have an exclusive steel cabinet on my balcony for storing and charging the board. 
This depends a lot on the specific equipment used, but I have used multiple chargers in parallel and it works fine. It could cause problems though, so be cautious.
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And make sure your bms is capable of the higher charge rate
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My charge ports were all originally 5.5 x 2.1.
Some are rated at 3 amps, some are 5, few are 10.
I now use 5.5 x 2.5 rated for 10 amps. I have a second one where a power button once resided, but it is not yet wired and fused.
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Sorry if someone posted something like this already, I only read halfway through the thread, but there are many considerations when charging at high amperage.
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cell charge rating
It’s tough to tell if the rating you are looking at is continueous or temperature limited, you should really know which one you are using before you pick out the highest amperage charger. -
cell ratings are usually for one single cell in open air. Not a huge mass of cells wrapped together wrapped in insulating tape, heat shrink, and stuffed in an airtight enclosure. Cells heat up during charging. They also heat eachother up. it’s a negative feedback loop. Always consider this.
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charge port rating - make sure charge port has sufficient rating
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wiring - make sure the guage of the wire from battery to BMS to charge port can all handle the current that you plan on using
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BMS - make sure the BMS that you are using can handle the charge current you are planning to use. A lot of them can be 10-15A
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if you meet all those requirements and still want to push high amperage, monitor your battery temp as you charge it the first time.
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Keep in mind that as batteries age, the internal resistance goes up so it creates more heat. If you are pushing the limits of heating when the pack is fresh then you will definitely be pushing the limits when it has aged a bit
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charging a battery from 0 to 100% will develop more heat than charging from 50% to 100%.
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charging a battery directly after riding will the battery is warm will end have a higher end temp than if you started with a cool battery.
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40-50c would be a good target to maintain battery for decent longevity.
-60c is acceptable, but you will definitely experience accelerated degradation.
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never exceed 80c
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if you have a thermocouple on the outside of the pack, figure that the inside of the pack will be hotter. I.e. if you are measuring 50 degrees on the outer cells, the inner cells could be warmer.
All that being said weipu sa12 connectors are a good waterproof connector with an amperage rating of 13A. They can be found on Amazon but are a better deal on AliExpress.
If 13A is not enough, then jump up to the weipu sa20. This one is good for 25A. The connector is large, but not redic. I only use they connector if I actually need to because of the size. You can find the technical drawings on the weipu site.
Panel mount xt30 or xt69 are a cheap and easy option however they are not waterproof by default.
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I used the weipu sp20, it can do up to 20A and is waterproof both while connected and while disconnected, and the female terminals are fully isolated from eachother so no risk of shorting.
Nowadays I use an xt60 because yolo
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All really good and valid points!
Totally forgot about that …but im pretty sure it’s at least 20A tho.
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