![]() ![]() Is a good example of a high powered but poor port usage, scroll down the page to the last image, btw, some 4 ports might only allow a max of 3 ports in use at any one timeĪ good example of a high powered and good port distribution i.e. Note, they do not all have to be USB-C either, just make sure that when all ports are used that the USB-A are 18w each, it could be that port (USB-C) and port 4 USB A are 18w each, thats certainly workable. So at the bare minimum, if you want to fast charge the RC, one in the drone and the hub, then you need at least 3 ports that are all capable of 30w each when all 3 ports are used, so a 100w min is preferable and even higher wattage is needed if you want to charge your phone at the same time too. If youre buying a multi port charger or power bank and wish to charge multiple devices at a fast charge then again, always check the max W per port, not only that, check the per port combinations too, thats very important as some will only allow for example, 3 port = 1 port 36w fast charge, and 2 x 10w snails pace charge when all 3 ports are used even though it might be a 65w charger, its only 65w if 1 USB-C port is used. I advise to always check the port(s) max wattage against the max allowed per battery, i.e. But it's a nice option to have when needed and especially nice to have in a power bank out in the field for shortening down time. But yes I wouldn't like to always charge my batteries at 4 amps 9 volts which is what these hi power fast chargers will throw out to a 37W battery. Yes I believe that is correct, slow charge will preserve the battery life longer than rapid charging But I also notice a lot of the modern intelligent chargers that I use for other batteries tend to favour hi charging rate when the batteries are low, say 25%, moving to a trickle charge as the power builds up above 75%.Īnyway the battery will only draw the power it can handle from any variable output charger. When I return home after my flight, I am not going to miss a few more hours charging time while I am asleep. I've thought about using a slow USB 2.0 charger with mere 2a output to slowly charge the batteries. I understand that it's better for the life of the battery to charge it slowly, rather than dump maximum power in it as quickly as possible. I charge and circle at about 20 metres until the 30% warning.I can understand wanting to recharge a battery as quickly as possible while on the go with the drone, but is charging batteries up rapidly from mains power a good thing? Not that it's dangerous, but I am thinking about the life of the battery. On the plus side, my mavic pro batteries are still pumping out close to their original flight time when i bought them back in 2017. The cells will be much hotter than the case when flying at full power on a hot day. Please note, it is the cell temperature that is important, not how hot the case is. Flying or recharging a hot battery (above the manufacturers max temp) will rapidly degrade the battery. The longer the battery remains at 100%, the quicker it will degrade although not as fatal as going down to 0%įlying in low temperatures only reduces the power output. You can slow the degrade to some extent by keeping the charge between 20% to 80% but you will need to go to 100% just prior to flight. ![]() That is a fact.Īlso, you can't stop your battery degrading, it started doing that the moment it was made. The faster you charge this battery chemistry, the faster the cells degrade. I'm sure it has to do something with the batteries firmware keeping them from overcharging. ![]() I have a 45W charger also and I tried that on the 2nd extended battery and it still took 1 hour and 40 minutes to charge so the intelligent batteries must only accept up to a 30W charge at a time. I have the extended batteries which take a full 1 hour and 40 minutes to charge with a 30W charger. ![]()
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