Traxide Dual Battery Voltages

[rocket rod]

I know I could have asked this question of Tim directly but then none of you would get to know the answer, so I hope Tim is online and can explain things.

My questions is; I have his Traxide dual battery setup and a dual volt meter in the car so I can see what's going on. The batteries are always the same voltage 12.6V after car has been sitting overnight. When I open the drivers door the main battery voltage drops because of all the start up routines running. I get that, but what I don't get is that the aux battery also drops moments later as though it's going out in sympathy. My understanding was that the two batteries are kept separate by the Traxide system so if one drains the other doesn't? So why should the aux voltage drop when all I've just done is open the door?

[kelvo]

USI-160 - 160 amp Winch Isolator | TRAXIDE - RV | Traxide - RV Explains the voltages, you didn't say if you had the switchable USI-160 or the fixed SC80 kit.

The USI-160 will disconnect at 12.6V if in 'ignition' mode or 12.0V if in 'shared' mode.

The SC80 is fixed to disconnect at 12.0V.

[drivesafe]

Hi Rod and how much later is the auxiliary battery taking before it's voltage drops to the same level as the cranking battery?

BTW I to prefer people to post up questions like this on the forum, for the very same reason you posted. The answer may also be of assistance to others.

[Blknight.aus]

my guess

the traxide is keeping the batteries linked and depending on where your gauge is hooked up and what sort of gauge it is the voltage drop may not be instantaneous on the aux battery.

Additionally some digital volt gauges dont do continual measurements they only update every XX seconds

From memory if you have the newest unit it will allow back charging from the aux to the main so if the batteries are both disconnected, the main voltage dips, the aux is high enough that the permissable reconnect for charging the main battery threshold is exceeded it will reconnect the batteries.

This is part of the new system that lets you run solar straight to the aux battery and give it priority charging and then when its up at near fully charged the main battery gets a serve.

[winaje]

This is part of the new system that lets you run solar straight to the aux battery and give it priority charging and then when its up at near fully charged the main battery gets a serve.

Is this the case on all USI-160s?

[drivesafe]

Is this the case on all USI-160s?

Hi Will, REVERSE CHARGING is not yet available on the USI-160, only available on the DT90-L322 isolators and the new SC80

[rufusking]

Hi Will, REVERSE CHARGING is not yet available on the USI-160, only available on the DT90-L322 isolators and the new SC80

Tim, how do I know if I have a "NEW" SC80?

[drivesafe]

Hi refusing, if you placed an order in late March this year, all SC80-CB isolators shipped from the first of April are the new SC80 isolators.

Sorry for the delivery delays, and please note, there are still some delays with orders but as the new SC80 isolators are now in full production, I will be able to catch up and reduce the delivery times.

BUT, once I have delivery times back to under a week, I will be increasing most of my isolator and Dual Battery Kit prices.

[LRD414]

Tim I understood the older SC80 (mine is 2014) allowed for back-feed from aux to cranking that kept the cranking at a higher SoC all the time. So is the mentioned reverse charge something extra?

Cheers,
Scott

[wbowner]

Tim
I am sure I have misunderstood the reverse charging comment. I thought that was a feature if all sc80 units

I got my traxide set up in 2014. It was my understanding that the aux battery would supplement the main battery if the main is lower and visa versa.
With protections to not drain either.

Richard