Thread Tools
May 06, 2018, 08:29 PM
Electrons were young...

GT1000 and GT1200 charge termination

I own both and was doing some parallel charging on both this morning and it seemed different from the PL6 I also use.

The PL6 will promptly terminate the charge with C/10 even when parallel charging. I set 3a per pack for 9 packs and when the charge is below 2.7a it terminates.

The GT1000 and GT1200 didn't terminate the same. When the charge went below C/10 they both continued for five minutes more that the PL6 would. The packs being charged have been charged on all the chargers in various combinations and the behavior is the same.

Is there a setting on the GT series that needs to be changed from the default to correct this? The setting on the termination is C/10.
Sign up now
to remove ads between posts
May 08, 2018, 09:45 AM
Registered User
Did you notice at what amps the charge terminates? Is the "Require Balance Done" setting at "No"?

It may also help if you could share more details about your settings. If all settings are normal, then it's not unusual for both the Powerlabs and GT series to exhibit different behaviours since they run different firmware algorithms.
May 08, 2018, 11:00 AM
Electrons were young...
Settings are default since I haven't changed anything. I will go in and see what they are set to this evening.

I had the charger set to 3 amp charge rate x 9 parallel packs. It was charging at 27 amps and didn't terminate until below 1 amp.

All the packs are good and have been charged on the PL6 without this behavior so I assume it was a setting that is just different in the GT1000, GT1200 chargers.
Jun 07, 2018, 11:37 AM
Electrons were young...
Took a picture yesterday while charging.

Was charging 8 3s 2200mah packs at 5a each on my GT1200. Settings for termination were set to C/? with C/3 and require balance set to no.

In the picture you can see it really is getting low before terminating. It finally terminated at around 175mah.

Thoughts on how to improve this?
Jun 10, 2018, 08:06 AM
Registered User
We acknowledged the issue. Will fix it in the next firmware release.

Jun 10, 2018, 11:14 AM
Electrons were young...
Good to know.

Is there a list of known issues maintained anywhere I can reference?
Jun 12, 2018, 10:30 AM
Registered User
This is the only known issue for latest firmware. If you have other issues to report, please drop me a mail at fong@revolectrix .com.
Jun 12, 2018, 11:28 AM
Electrons were young...
Is there an ETA on the release of the new firmware?
Jun 20, 2018, 10:31 PM
Electrons were young...
I watched the 1200 and 1000 closely tonight while charging.

Set to 4.4a x 7 (7 3s in parallel)
Balance required set to no
Termination set to C/3

It terminated immediately at 199mah rate (per pack). That seems like a C/20 or close to. Charge took 27 minutes. I duplicated this three times on the GT1200 and the GT1000 with the same settings.

In comparison the PL6 will terminate at 440mah in about 23 minutes on the "High Power" profile. The difference isn't really a problem now that I have more testing. Just passing on the info to you.hanks again.
Jun 28, 2018, 10:34 AM
Electrons were young...
After some more testing I have an update.

Charging on a single battery setting it terminates exactly as it should. The issue only presents when parallel charging.
Sep 09, 2018, 09:45 PM
Electrons were young...
Revofong, any update on this?
Sep 15, 2018, 12:05 PM
Electrons were young...
Still looking for an update. Any ETA?

Quick Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Revolectrix: New "GT Eight" and "GT1200" chargers...? nickthenorse Batteries and Chargers 64 Jun 16, 2018 02:13 PM
Discussion Revo GT1000 vs Hyperion 720Duo charge characteristics 12c Batteries and Chargers 4 Oct 20, 2017 12:13 AM
Discussion GT1200 Charge Control Software Alex_edt Revolectrix 4 Jan 04, 2017 09:09 AM
algorithm for charge termination? gulio Batteries and Chargers 8 Sep 22, 2005 06:19 PM
LiPo charging. Termination voltage? Mikael Pedersen Batteries and Chargers 18 Mar 18, 2004 01:29 PM