Should I be concerned about battery drain issues?

[Genesiswonderer]

Okay, so I am going to get a remote starter (Compustar and drone mobile) installed in my car later today.

I have a 2015 3.8 sedan with an agm battery from 2019. This battery tested good only a month ago.

Should I be concerned about the battery draining after only a couple of days?

I’ve read horror stories how the remote starter would drain the battery after only one or two days of sitting.

Should I be concerned in the genesis? Or is it better off because the huge h9 agm?

Also, how much power in ma did Bluelink draw when it was active? Does Bluelink draw this power still even though it’s inactive?

Anyone who’s installed Compustar remote starters in their gennys had any issues where they weren’t able to start the car after 3-4 days of sitting?

Any help is appreciated.

 

[joegr]

No reason to be concerned about the battery.
If it is installed correctly and working correctly, it shouldn't make any noticeable difference. Maybe it goes flat in 30 days instead of 31.
I don't know how much. Maybe 20 mA or so? Yes, I would expect that the Bluelink modem is still drawing power.

 

[Genesiswonderer]

No reason to be concerned about the battery.
If it is installed correctly and working correctly, it shouldn't make any noticeable difference. Maybe it goes flat in 30 days instead of 31.
I don't know how much. Maybe 20 mA or so? Yes, I would expect that the Bluelink modem is still drawing power.

Thanks for the reply! Have you had experience with an aftermarket remote starter in a car yourself?

I’m considering leaving the car sitting for a few days after I play around with it today and driving the other car to see how the battery holds up.

Also, how do I make sure they install it correctly? This is Best Buy I’m working with (fun fact the first time I got it installed the drone module was missing and they had to uninstall the actual remote starter brain and return it. Anyways the guy didn’t correctly reassemble the car (the panels didn’t fit and the puddle light didn’t work anymore) so I had to go back and get them to reconnect it. Obviously this time I’m going to a different Best Buy as the guys at the first one were sketchy.

Also, if you know, do you have to have the keyfob with you to drive off or can you just unlock it from drone (your phone) and then hop in and drive off (that’s what the Compustar rep told me on the phone but that just sounds like a higher security risk, but he said the vehicle must be unlocked first with the drone or remote)

 

[EdP]

Okay, so I am going to get a remote starter (Compustar and drone mobile) installed in my car later today.

I have a 2015 3.8 sedan with an agm battery from 2019. This battery tested good only a month ago.

Should I be concerned about the battery draining after only a couple of days?

I’ve read horror stories how the remote starter would drain the battery after only one or two days of sitting.

Should I be concerned in the genesis? Or is it better off because the huge h9 agm?

Also, how much power in ma did Bluelink draw when it was active? Does Bluelink draw this power still even though it’s inactive?

Anyone who’s installed Compustar remote starters in their gennys had any issues where they weren’t able to start the car after 3-4 days of sitting?

Any help is appreciated.

Put a Compustar in my G80. Had other cars with remotes. Never had an issue.

 

[Genesiswonderer]

Put a Compustar in my G80. Had other cars with remotes. Never had an issue.

thanks for the reply! Can you leave the car sitting for a week and come back and start it right back up? Do you have the drone or any telematics type of system? Because I think people said the Drone really sucks power. I think I read somewhere the drone sucks like 50ma.
Or have you known anyone who's had something like drone mobile and they've been able to let their car sit for a week and start it right back up?

 

[EdP]

thanks for the reply! Can you leave the car sitting for a week and come back and start it right back up? Do you have the drone or any telematics type of system? Because I think people said the Drone really sucks power. I think I read somewhere the drone sucks like 50ma.
Or have you known anyone who's had something like drone mobile and they've been able to let their car sit for a week and start it right back up?

My car never sat more than four days. Did not have the drone.

 

[joegr]

thanks for the reply! Can you leave the car sitting for a week and come back and start it right back up? Do you have the drone or any telematics type of system? Because I think people said the Drone really sucks power. I think I read somewhere the drone sucks like 50ma.
Or have you known anyone who's had something like drone mobile and they've been able to let their car sit for a week and start it right back up?

Let's assume that the car's own idle drain is also 50 mA (it's probably only 20 to 30 though). Combine that with the 50 mA from that remote start to get 100 mA.
The battery is rated for 105 Ahr, so it could source 100 mA for up to 1,050 hours (over 43 days). Of course, the battery would be completely dead by then. However, after just 21 days, you would still have half power which should be enough to start the car. If you assume that the battery is kind of old and at only 75% capacity, you should still get 16 days.

 

[Genesiswonderer]

Let's assume that the car's own idle drain is also 50 mA (it's probably only 20 to 30 though). Combine that with the 50 mA from that remote start to get 100 mA.
The battery is rated for 105 Ahr, so it could source 100 mA for up to 1,050 hours (over 43 days). Of course, the battery would be completely dead by then. However, after just 21 days, you would still have half power which should be enough to start the car. If you assume that the battery is kind of old and at only 75% capacity, you should still get 16 days.

Thanks for the reply! One cool feature of drone mobile is that it has the battery voltage inside the app. The last time the car was started was a little before 7pm last night. Before I went to bed last night at about 11 pm, the battery voltage was 12.7-12.8. Now, at about 8:30 in the morning, the battery voltage is reading 12.6-12.7. Is this normal or is my battery getting slowly drained?

 

[joegr]

Thanks for the reply! One cool feature of drone mobile is that it has the battery voltage inside the app. The last time the car was started was a little before 7pm last night. Before I went to bed last night at about 11 pm, the battery voltage was 12.7-12.8. Now, at about 8:30 in the morning, the battery voltage is reading 12.6-12.7. Is this normal or is my battery getting slowly drained?

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

 

[Genesiswonderer]

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

Okay, thanks. Do you think leaving the car sitting until Friday or Saturday and driving my other car in the mean time would be a good idea to see if this will work out or not? I have a jump starter charged and ready to go. Do you think from the current pattern I’m on the right track to being fine or is it too hard to tell right now?

Do you personally have any experience with aftermarket remote starters and specifically drone?

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[joegr]

Okay, thanks. Do you think leaving the car sitting until Friday or Saturday and driving my other car in the mean time would be a good idea to see if this will work out or not? I have a jump starter charged and ready to go.

Do you personally have any experience with aftermarket remote starters and specifically drone?

I don't see why not.
No, I don't have aftermarket remote start experience, but I am looking at the Drone Mobile one. If I could buy it directly and install it myself, I would do it. If I can't, I may buy one of the lesser ones (like MyKey) that will sell to you.

 

[Genesiswonderer]

I don't see why not.
No, I don't have aftermarket remote start experience, but I am looking at the Drone Mobile one. If I could buy it directly and install it myself, I would do it. If I can't, I may buy one of the lesser ones (like MyKey) that will sell to you.

Okay. Drone mobile is pretty cool! Just making sure battery drain isn’t an issue then will recommend it.

Do you think I’m on the right track based on the current patterns of battery voltage or is it too soon to know?

 

[Genesiswonderer]

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

Update: it is now about 6pm. The vehicle was last started about 6:45pm yesterday, so we’re basically at the 24 hour mark. Similar story as this morning, still seeing 12.6-12.7 volts, except I’m seeing 12.6 volts more than this morning. I think we’re hopefully on the right track. Do you think it will be able to be 12.6 if I leave it sitting until Saturday (currently Wednesday)?

Is this normal drain? The fact I’m seeing 12.6 a little more is slightly concerning.

 

[Genesiswonderer]

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

Update 2: it is about 7 am the morning of the start 2nd day. The battery voltage is now down to 12.6. It seemed to last night fluctuate from 12.6 to 12.7 showing 12.6 more. Now, it’s completely at 12.6. I started 12.8-12.7 the night after I started it.

Is my battery slowly draining. Should I be concerned?

 

[joegr]

I think you're still good.

 

[Genesiswonderer]

I think you're still good.

Thanks for the reply! What do you think the voltage will be on Saturday morning if I leave it sitting until then? Would it still be 12.6 at that point? Should I expect it to go down anymore between now and then.

So is this just the voltage fluctuating or is the battery slowly draining (either normally or a little faster than normal?

I guess in the meantime I’ll continue to enjoy the V8 power of my other carr (2011 Genesis 4.6, I have the 3.8 in my 2015 so the 4.6 has a lot more pickup).

 

[Genesiswonderer]

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

Update 3: it is now 6pm on the second day. The car was started last about 6:45pm two days ago, so we’re almost to the 48 hour mark.

During most of today, the battery voltage was 12.6. I’m seeing 12.7 sometimes, but mostly 12.6 now.

Do you think this means I’ll be fine in a few days and I can go ahead and end the experiment and know I can let the car sit for a few days to a week and a half or is battery voltage not a good way to test parasitic draw and the battery still could be low?

Thanks for all the input so far!

 

[Genesiswonderer]

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

Update 4: it is now about 8 am on the third day, which means we’re past the 60 hour mark since the car was last started.. I just checked this morning and the battery voltage seems to be a steady 12.6 volts. Last night it was mostly 12.6 with rarely showing 12.7.

Do you think this means I’ll be fine in a few days and I can go ahead and end the experiment today and know I can let the car sit for a few days to a week and a half or is battery voltage not a good way to test parasitic draw and the battery still could be low? Do I actually got to go and try to start it and see how it cranks?

 

[Genesiswonderer]

I think you need a little longer period of monitoring to tell. The battery is going to drop for a little while after it is last charged, and also the voltage will vary with temperature. The lower the temperature, the lower the voltage.

update 5: it is almost 9pm on day 3. Battery voltage was conisntely 12.6 today. Remember, Tuesday I started 12.7-12.8. I did poke around in the vehicle today (just opened and closed the door, so like the dome lights and radio probably woke up for a few minutes).

Tomorrow morning, I will start the car and will report back with my findings.

Do you think if it starts right up in the morning and the battery voltage right now is still 12.6 the vehicle could easily sit for 2 weeks?

 

[joegr]

...

Do you think if it starts right up in the morning and the battery voltage right now is still 12.6 the vehicle could easily sit for 2 weeks?

Yes