A gentleman named Drew Wilson posted about this in a FB group I'm in. Thank you to him for posting and sharing his info about it! I'm not sure if he's on SB or not.
I don't see any discussion about it here on SB, so ... here is some. LOL
I just got one of these chargers. They market it as being for an e-bike. The Cycle Satiator. It was something like $375 with shipping and the cables I wanted.
They have all kinds of adapters so you can connect it a ton of stuff.
Satiator - Grin Products - Product Info
The 72V (nominal) model will charge up to a max actual of 103V.
If you’re gonna have a big boy scooter, you might want to get one of these chargers. Or maybe other scooters come with chargers that are as smart as this one?
My Genesis 2.1 is a max of 75V when fully charged. I got the 72V model of this charger. They have an adapter for connecting it to the Genesis charging cable (a 4 pin GX16 XLR F). I.e. and to be clear, the Satiator 4-pin GX16 XLR adapter does not connect the charger to the charging port on the scooter. It connects the charger to the last part of the charging cable that comes with the Genesis charger. THAT cable is what connects to the Genesis charging port.
It works perfectly.
The beauty of it is:
The one I set as Default is used when you connect it, if you don’t go manually choose a different charging profile. You don't have to set one as Default and you probably wouldn't if you were going to use the charger on devices with different battery chemistries or different max voltages.
I set up the default so it automatically slow charges (3A) my Genesis up to 67V (80% charge). Perfect to come home from a dive trip, plop the scooter on the charger (assuming it was run down low) and just walk away.
But, I made other profiles for slow charge to 100%, fast charge to either 80 or 100%, and a profile to charge it to its actual max (75.6V, instead of 74.8), if I ever want to do something where the normal “100%” charge is marginal. According to Drew's post on FB, @Jon Nellis set the Genesis for a max charge of 74.8V to keep it under the EU Low Voltage Directive limit of 75V, "but you can go up to 75.6V (AT YOUR OWN RISK), if you change the cell and pack voltage limits in the BMS parameters. You pick up a little more capacity, but higher voltages also shorten cell life, so that's the trade off."
What is an extra 0.8V in this case? An extra 38 Wh of total battery capacity? I don't know. Probably not generally useful ... enough to be worth shortening battery life like that.
Drew also relayed that John said the Genesis is protected inside against charging over 5A. I'm waiting to hear what the max safe actual charging current is. Can I charge at 5A, if I'm in a hurry? Or do I need to run it at some lower current limit, to be sure it doesn't trip the internal protection inside the scooter?
And, is charging at 3A actually beneficial, versus 4A (or higher)? Maybe I really only need profiles for charging to 80% and 100%, but not separate ones for fast versus slow.
I don't see any discussion about it here on SB, so ... here is some. LOL
I just got one of these chargers. They market it as being for an e-bike. The Cycle Satiator. It was something like $375 with shipping and the cables I wanted.
They have all kinds of adapters so you can connect it a ton of stuff.
Satiator - Grin Products - Product Info
The 72V (nominal) model will charge up to a max actual of 103V.
If you’re gonna have a big boy scooter, you might want to get one of these chargers. Or maybe other scooters come with chargers that are as smart as this one?
My Genesis 2.1 is a max of 75V when fully charged. I got the 72V model of this charger. They have an adapter for connecting it to the Genesis charging cable (a 4 pin GX16 XLR F). I.e. and to be clear, the Satiator 4-pin GX16 XLR adapter does not connect the charger to the charging port on the scooter. It connects the charger to the last part of the charging cable that comes with the Genesis charger. THAT cable is what connects to the Genesis charging port.
It works perfectly.
The beauty of it is:
- It will run up to 5A, so it’s faster than the Genesis charger (max of 4A).
- It is totally quiet, unlike the Genesis whisperjet charger.
- You can setup different profiles on it. You can do that manually, from the front panel, or you can download their software suite to your PC, set them up in there, and then download them to the charger. You can also update the charger firmware from there. If you're going to use your PC, make sure you also order their TRS-to-USB cable.
- The charger can do Lithium-ion, NiMH, and lead acid batteries, if you care.
- It's claimed to be watertight, as it is intended that it CAN be semi-permanently mounted on the frame of an e-bike and hard-wired to the bike's battery, for easy plug-in charging. I guess that could be handy if you needed to use it to charge your scooter on a boat.
The one I set as Default is used when you connect it, if you don’t go manually choose a different charging profile. You don't have to set one as Default and you probably wouldn't if you were going to use the charger on devices with different battery chemistries or different max voltages.
I set up the default so it automatically slow charges (3A) my Genesis up to 67V (80% charge). Perfect to come home from a dive trip, plop the scooter on the charger (assuming it was run down low) and just walk away.
But, I made other profiles for slow charge to 100%, fast charge to either 80 or 100%, and a profile to charge it to its actual max (75.6V, instead of 74.8), if I ever want to do something where the normal “100%” charge is marginal. According to Drew's post on FB, @Jon Nellis set the Genesis for a max charge of 74.8V to keep it under the EU Low Voltage Directive limit of 75V, "but you can go up to 75.6V (AT YOUR OWN RISK), if you change the cell and pack voltage limits in the BMS parameters. You pick up a little more capacity, but higher voltages also shorten cell life, so that's the trade off."
What is an extra 0.8V in this case? An extra 38 Wh of total battery capacity? I don't know. Probably not generally useful ... enough to be worth shortening battery life like that.
Drew also relayed that John said the Genesis is protected inside against charging over 5A. I'm waiting to hear what the max safe actual charging current is. Can I charge at 5A, if I'm in a hurry? Or do I need to run it at some lower current limit, to be sure it doesn't trip the internal protection inside the scooter?
And, is charging at 3A actually beneficial, versus 4A (or higher)? Maybe I really only need profiles for charging to 80% and 100%, but not separate ones for fast versus slow.