Battery drain - Navitas or bad cell?

nutbagger · 09-21-2022, 09:41 AM

I recently upgraded our 2019 Drive2 AC (purchased used a few months ago) with the Navitas AC controller. It was running fantastic, but recently it started falling off in power quickly. After a block or so it would drop in power to the point where it was limping along. Followed along in the Navitas app and I can see the voltage dropping down to 46 as I drive it. I looked at the batteries, and while there is some corrosion, I noticed the battery directly below the driver seat appears to have a bit of a leak. Would that indicate a bad battery? Any other things I should look at to troubleshoot why it's dropping? We keep it on the charger when not in use, so it's getting a full charge before we take it out.

jasonojordan · 09-21-2022, 10:20 AM

Quote:

Originally Posted by nutbagger

I recently upgraded our 2019 Drive2 AC (purchased used a few months ago) with the Navitas AC controller. It was running fantastic, but recently it started falling off in power quickly. After a block or so it would drop in power to the point where it was limping along. Followed along in the Navitas app and I can see the voltage dropping down to 46 as I drive it. I looked at the batteries, and while there is some corrosion, I noticed the battery directly below the driver seat appears to have a bit of a leak. Would that indicate a bad battery? Any other things I should look at to troubleshoot why it's dropping? We keep it on the charger when not in use, so it's getting a full charge before we take it out.

when is the last time you checked your water level?

Volt_Ampere · 09-21-2022, 12:34 PM

You certainly have at least one bad battery. Measure all voltages at rest and under load.

nutbagger · 09-25-2022, 01:02 PM

Sorry for late reply.

Battery water levels are all good. Checked visually, and they're also maintained by the HydroLink system.

Is there a good way to test the batteries without having to take it somewhere?

ojo · 09-25-2022, 01:52 PM

The leaking is more a problem of the hydro link system. The first battery will be potentially overfilled. I've had same issue and the hydro link was thrown out. NOT RECOMMENDED! With a voltmeter, check each battery when resting and under load (while driving). Post the results...

Read here, why a watering system is bad:

https://buggiesgonewild.com/showthre...atering+system

nutbagger · 09-26-2022, 07:40 AM

Woof. I'll be getting rid of those.

Do I just remove the line, or remove the line and water caps at the top?

ojo · 09-26-2022, 08:11 AM

You'll need a set of oem vent caps for your batteries...

09-21-2022, 09:41 AM	#1
nutbagger Not Yet Wild Join Date: Aug 2022 Posts: 3	Battery drain - Navitas or bad cell? I recently upgraded our 2019 Drive2 AC (purchased used a few months ago) with the Navitas AC controller. It was running fantastic, but recently it started falling off in power quickly. After a block or so it would drop in power to the point where it was limping along. Followed along in the Navitas app and I can see the voltage dropping down to 46 as I drive it. I looked at the batteries, and while there is some corrosion, I noticed the battery directly below the driver seat appears to have a bit of a leak. Would that indicate a bad battery? Any other things I should look at to troubleshoot why it's dropping? We keep it on the charger when not in use, so it's getting a full charge before we take it out.
nutbagger Not Yet Wild Join Date: Aug 2022 Posts: 3

09-21-2022, 12:34 PM	#3
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,167	Re: Battery drain - Navitas or bad cell? You certainly have at least one bad battery. Measure all voltages at rest and under load.

09-25-2022, 01:02 PM	#4
nutbagger Not Yet Wild Join Date: Aug 2022 Posts: 3	Re: Battery drain - Navitas or bad cell? Sorry for late reply. Battery water levels are all good. Checked visually, and they're also maintained by the HydroLink system. Is there a good way to test the batteries without having to take it somewhere?
nutbagger Not Yet Wild Join Date: Aug 2022 Posts: 3

09-25-2022, 01:52 PM	#5
ojo Gone Wild Join Date: Sep 2020 Location: Germany Posts: 1,999	Re: Battery drain - Navitas or bad cell? The leaking is more a problem of the hydro link system. The first battery will be potentially overfilled. I've had same issue and the hydro link was thrown out. NOT RECOMMENDED! With a voltmeter, check each battery when resting and under load (while driving). Post the results... Read here, why a watering system is bad: https://buggiesgonewild.com/showthre...atering+system

09-26-2022, 07:40 AM	#6
nutbagger Not Yet Wild Join Date: Aug 2022 Posts: 3	Re: Battery drain - Navitas or bad cell? Woof. I'll be getting rid of those. Do I just remove the line, or remove the line and water caps at the top?
nutbagger Not Yet Wild Join Date: Aug 2022 Posts: 3

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09-26-2022, 08:11 AM	#7
ojo Gone Wild Join Date: Sep 2020 Location: Germany Posts: 1,999	Re: Battery drain - Navitas or bad cell? You'll need a set of oem vent caps for your batteries...

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