Custom Charge Profile

[Curtech]

What's everyone charging their batteries to?
Chemistry
Nominal Volts
Full Volts
Complete Amps
Trickle Start Volts
Trickle End Volts
Trickle Amps

Looking to setup a custom profile on my charger and wondering what others are finding as the best soln for usability and longevity.
If there's links here already discussing, pls point to those too.

 

[smorgasbord]

Don't know what kind of charger you have, but I've done several profiles on my Grin Satiator charger:

For my 52 volt (nominal) batteries that are large (over 1,000 wh):
Choice of current: 1, 2.5, or 5 amps
Full Voltage: 55.4v, 57.1, 58.4, and 58.8v (for 80%, 90%, 97.5%, and 100%) I rarely go to 100%
The start voltages were automatically chosen by the Grin software based on my battery type.

 

[Curtech]

In case anyone else is using the Grin Satiator, if you want to add custom profiles, in my experience you cannot see the specific settings of the existing profiles without using their PC/Mac software suite. Once you connect the satiator to your PC, viewing the existing settings, modifying existing profiles, and creating new ones is straight forward. If you're having a hard time seeing the text in their software, try setting your resolution to 1k, set the scale to 100%, and set your text size to default (if you're using accessibility options). High res (say, 4k) and scaling (say, 150 or 175%) results in text in their software that's unreadable and cutoff in many ways (at least that's how it was on my PC on Windows 11, 4k res at 175% scaling).

 

[smorgasbord]

Yeah, running the software on my Mac also has issues. You can't be using the dark theme in MacOS, for instance, but at least it scales OK with the screen resolution.

First thing to do, however, is read from your Satiator and save to a file in case you ever want to reset to factory defaults.

 

[juggernaut1]

I’ve set custom profiles and both of my Satiator chargers for my 48v and 60v batteries using my Windows 10 laptop. I didn’t run into any issues and found it to be a reasonably easy process.

You do need to be mindfull of the of the amp capacity of the type of plug for your particular battery if you are increasing the amps. For safety reasons I maintained the same amps as the supplied chargers.

 

[juggernaut1]

Don't know what kind of charger you have, but I've done several profiles on my Grin Satiator charger:

For my 52 volt (nominal) batteries that are large (over 1,000 wh):
Choice of current: 1, 2.5, or 5 amps
Full Voltage: 55.4v, 57.1, 58.4, and 58.8v (for 80%, 90%, 97.5%, and 100%) I rarely go to 100%
The start voltages were automatically chosen by the Grin software based on my battery type.

I like the 97.5% charge, I didn’t think of that one.

Whilst I setup custom charge profiles with a choice of amps in practice I find I only use the OEM 2 amps for my 48v battery and 5 amps for my 60v battery.

 

[Curtech]

I've modified the factory 85% charge profile on the Satiator to push 2A (instead of the default 4). I'm charging overnight so I'm in no rush, and, unless I'm mistaken, charging slower is easier on the battery. Issue I'm seeing (and this happens no matter if I'm charing at 4A or 2A) is that sometimes I come out in the morning and the battery didn't charge. Volts show as ~47V (nominal 48V battery). My guess here is that the battery is charging to the 85% capacity (~52V), stopping, and then discharging through the Satiator. Anyone else seeing behavior like this?

 

[smorgasbord]

Actually, I believe the Satiator maintains a tiny trickle current to keep the battery at its percentage once reached.