The heat from the AMC’s seem to be flowing very quickly to the temp sensor (inside the MCU) which is directly on the other side of the driver.
We dont know why it flows so quickly, but the best theory is a combination these 2 things:
1. The AMC chips are not touching the battery tube or body so they get hotter than normal.
2. Maybe there are vias too close to the legs of the MCU (the MCU absorbs heat through it’s 8 legs). The vias might be transferring heat directly from the AMC to the MCU, which is not good.
This new copper piece adds mass to the AMC’s making their temp go up much slower. This prevents the MCU from heating up so fast.
Here is the thread where the problem was discussed.
Yes thank you ! I later read more attentively carefully … But damn it, why did the manufacturer not take care of this? Indeed, before selling a product, it must be thoroughly tested … as a person, before a serious fight))
If I understand correctly, we will need a magnet to ensure contact between the battery and the driver. But in this case, there is a danger that the magnet will make a short circuit to the custom radiator.
I thought he also makes protective stickers, but generally with this plate a magnet is a bad idea and its not needed as the positive button is raised
I sent Mateminco the CAD files, I hope they decide to use them on next batch or even replace it on any future lights leaving fab after they got them made
I hope Mateminco can do an aluminum version that’s anodized, so any shorting issues would be not that much of a problem
copper or brass is nice but the type of material does not play a big role here, its relative few heat on a big surface
He like many others on CPF have been warned by CPF moderators to not allow any links to BLF. It’s not that Vinh don’t want to allow BLF links but he might get banned by CPF and he relies on CPF for his business to pay his bills