sjspark
Posts: 6
Joined: Sat Nov 02, 2019 7:33 pm

Re: Spark EV 12 volt battery

Sun Nov 03, 2019 3:02 pm

Thanks. I just ordered the CTEK charger you posted earlier (-865). Will arrive Tuesday. Will try it out then.
The picture there indicates it does de-sulphation (stage 1).
Is that not what you have? Wondering if i should cancel and buy one that does the desulphation also, if this one does not.

But I did connect the jump starter to the car battery and measured its voltage with a multi-meter (after disconnecting the jump starter).
It was at 9.70 V originally. After 5 mins, it went up to 10.40 V.
But 10 more minutes, it was back to 10.2V and after an hour or so, back to 9.92V with nothing attached to it.
As you confirmed earlier, the electric cars need the 12V battery even while driving, so it seems risky to put it back.
Besides, wife won't drive the car with the old battery in it.

Edit on CTEK 865:
So the video indicates it has 6 stages. The description shows 8 stages (adsorption and soft start and recondition ectra stages).
Wondering how important the recondition stage is. Important enough to change the order?

MrDRMorgan
Posts: 1087
Joined: Wed Oct 30, 2013 7:27 am
Location: Manteca in Central California

Re: Spark EV 12 volt battery

Sun Nov 03, 2019 3:27 pm

sjspark wrote:
Sun Nov 03, 2019 3:02 pm
Thanks. I just ordered the CTEK charger you posted earlier (-865). Will arrive Tuesday. Will try it out then.
The picture there indicates it does de-sulphation (stage 1).
Is that not what you have? Wondering if i should cancel and buy one that does the desulphation also, if this one does not.

But I did connect the jump starter to the car battery and measured its voltage with a multi-meter (after disconnecting the jump starter).
It was at 9.70 V originally. After 5 mins, it went up to 10.40 V.
But 10 more minutes, it was back to 10.2V and after an hour or so, back to 9.92V with nothing attached to it.
As you confirmed earlier, the electric cars need the 12V battery even while driving, so it seems risky to put it back.
Besides, wife won't drive the car with the old battery in it.

Edit on CTEK 865:
So the video indicates it has 6 stages. The description shows 8 stages (adsorption and soft start and recondition ectra stages).
Wondering how important the recondition stage is. Important enough to change the order?
Definitely the 12 volt battery needs to be replaced. Make sure whatever AGM charger you order has the desulfating function. I use a BatteryMinder model 2012-AGM. I also ordered and use extension cables so I can plug into a distant wall outlet in my garage and an OBD2 plug + cable so I can charge through the OBD2 port inside of the car. It works great! I usually "freshen" the battery in each of my two Spark EVs for a minimum of 12 hours during the first week of every month.

SparkE
Posts: 374
Joined: Tue Sep 06, 2016 1:18 am
Location: SF Bay Area (San Jose, CA)

Re: Spark EV 12 volt battery

Mon Nov 04, 2019 1:44 am

sjspark wrote:
Sun Nov 03, 2019 3:02 pm
Thanks. I just ordered the CTEK charger you posted earlier (-865). Will arrive Tuesday. Will try it out then.
The picture there indicates it does de-sulphation (stage 1). Is that not what you have? Wondering if i should cancel and buy one that does the desulphation also, if this one does not.

{{ description of low battery voltage }}
You definitely need a new battery - it looks as if one of your cells is completely shot (only 5 cells @ 2V are still OK, instead of the 6 it should have).

The CTEK that I have starts with a "desulphation" test, and (on my batteries) generally skips it (as not needed).

MrDrMorgan has a unit that desulphates (always) as it charges :

https://www.amazon.com/BatteryMINDer-Mo ... 005EKY1EM/

It also charges at a max of 2A instead of 0.8A that mine does. If I had it to do over again, I might choose the Battery Minder over the CTEK - I don't know. I do really like mine (and MrDrMorgan really likes his).

Personally, I think that it is a good idea to fully overnight trickle charge one's battery about once a month. Very true for EVs, and for ICE vehicles that don't get driven much (parked 5-7 days a week).

sjspark
Posts: 6
Joined: Sat Nov 02, 2019 7:33 pm

Re: Spark EV 12 volt battery

Wed Nov 06, 2019 10:55 am

So I got the charger from Amazon. Tried it overnight on the dead battery. It gave out an error code , stuck in stage 1 and 8.7V in the morning. The battery is surely totally dead. The only unusual thing happened that day was PGE shut off power and then on again while car was on charge. Don't know if it has anything to do with it. Battery was 5 1/2 years old.

RockAuto delivered the battery today morning,that was promised by Thursday! I put the new one in.
Everything works perfectly! Drove it to work just to make sure the battery gets fully charged.


I give two thumbs up to Rockauto. Good price and fast delivery. Was afraid battery may not be charged. But it was.
I still don't get it why Amazon and Ebay are asking for 3x the price.

So all is good now. Hopefully this does it for next few yeas. Just surprised by the poor design of EVs.
A high voltage battery is there, still it needs another battery all the time to drive the car. I understand audio etc. can be turned off.
But to kill the accelerator pedal because of a dead 12V is a very silly design.

SparkE
Posts: 374
Joined: Tue Sep 06, 2016 1:18 am
Location: SF Bay Area (San Jose, CA)

Re: Spark EV 12 volt battery

Thu Nov 07, 2019 2:20 pm

I suggest that tonight you plug your brand new smart trickle charger onto your new battery, and let it fully saturate charge your new battery overnight - just unplug it in the morning (the charger is smart enough to stop charging when the battery is full).

ShamusSpark
Posts: 1
Joined: Sat Dec 21, 2019 2:58 pm

Re: Spark EV 12 volt battery

Sat Dec 21, 2019 3:07 pm

My 2014 Spark EV wouldn't start up at all (doors wouldn't unlock either). The problem was just a loose negative terminal. It looked fine, but needed tightening. Everything is fine now.

SteveC5088
Posts: 155
Joined: Sun May 04, 2014 10:35 pm
Location: Fresno, CA

Re: Spark EV 12 volt battery

Thu Jan 09, 2020 10:29 pm

Just short of 6 years old, my 2014 Spark EV's 12-volt battery quit. Car refused to shut down--kept trying to restart. Found that press-and-hold the power switch would do a hard shutdown. Got 3-4 error codes on the dash. Had to leave it overnight in a grocery store parking lot. Now that I think about it, I probably should have tried jumping the battery to another car, and getting it going. I probably could have driven the 2-miles home. Instead we towed it ourselves using a tow strap and that little tow-bolt stored in the trunk--it's pretty slick.

I read through this entire thread, and looked up batteries. Though I am not convinced that a regular Spark (non-EV) R1 battery wouldn't work ok, my wife convinced me that we shouldn't be the ones to try that out. So... I found one auto repair shop that could get me one in Fresno, but their price was onl $20 less than the Chevy dealer, and they wanted me to drive in, pay in person, and THEN they would get the battery from the supply warehouse (some wholesale place in Fresno has them). So instead, I worked with the Chevy dealer in Clovis, who got the battery in a couple of hours, without my first paying for it. The battery number is LN1AGM.

I removed the old battery, took it to the dealer and walked out with the new one.... $240 poorer! But my little electric hot rod is running great again. So now I can tell people that tires AND the 12V battery together cost more than the electricity to keep it running.
2013 Chevy Volt, 2014 Spark EV

MrDRMorgan
Posts: 1087
Joined: Wed Oct 30, 2013 7:27 am
Location: Manteca in Central California

Re: Spark EV 12 volt battery

Fri Jan 10, 2020 8:37 am

SteveC5088 wrote:
Thu Jan 09, 2020 10:29 pm
Just short of 6 years old, my 2014 Spark EV's 12-volt battery quit. Car refused to shut down--kept trying to restart. Found that press-and-hold the power switch would do a hard shutdown. Got 3-4 error codes on the dash. Had to leave it overnight in a grocery store parking lot. Now that I think about it, I probably should have tried jumping the battery to another car, and getting it going. I probably could have driven the 2-miles home. Instead we towed it ourselves using a tow strap and that little tow-bolt stored in the trunk--it's pretty slick.

I read through this entire thread, and looked up batteries. Though I am not convinced that a regular Spark (non-EV) R1 battery wouldn't work ok, my wife convinced me that we shouldn't be the ones to try that out. So... I found one auto repair shop that could get me one in Fresno, but their price was onl $20 less than the Chevy dealer, and they wanted me to drive in, pay in person, and THEN they would get the battery from the supply warehouse (some wholesale place in Fresno has them). So instead, I worked with the Chevy dealer in Clovis, who got the battery in a couple of hours, without my first paying for it. The battery number is LN1AGM.

I removed the old battery, took it to the dealer and walked out with the new one.... $240 poorer! But my little electric hot rod is running great again. So now I can tell people that tires AND the 12V battery together cost more than the electricity to keep it running.
Harbor Freight sells a very compact lithium Ion jump-start battery pack, made by Viking, that is ideal for the situation you mentioned. I carry one in each of my Spark EVs and it is sufficiently compact to fit under the driver's seat. Harbor Freight's sale cost is $69.95. It is my understanding that once you get the car started, the HV battery will provide the 12 volt power needed to charge the car's 12 volt battery and supply all of the other the car's 12 volt needs.

The other thing you may want to do is get an AGM 12 volt battery charger that also has a desulfating function. I make it a once-per-month practice to charge the 12 volt battery in both of my Spark EVs for 12 or more hours over night. I use a BatteryMINDer model 2012-AGM.

Kermit
Posts: 94
Joined: Mon Feb 04, 2019 10:47 am

Re: Spark EV 12 volt battery

Fri Jan 10, 2020 11:19 am

RockAuto.com usually allows you to get parts close to cost. $151.79 right now for the battery and $164.78 total delivered.
https://www.rockauto.com/en/catalog/che ... ttery,2476
2016 Spark EV
2017 Volt

NORTON
Posts: 1273
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Spark EV 12 volt battery

Fri Jan 10, 2020 3:23 pm

MrDRMorgan wrote:
Fri Jan 10, 2020 8:37 am
....The other thing you may want to do is get an AGM 12 volt battery charger that also has a desulfating function. I make it a once-per-month practice to charge the 12 volt battery in both of my Spark EVs for 12 or more hours over night. I use a BatteryMINDer model 2012-AGM.
Yep, I have one of those and use it on all my 12 V batteries.
Only less than once a month because I'm a slacker.
I performed an aviation style Capacity Check on my Spark EV battery earlier this year and it was performing great !
A typical Automotive Load Test is not the same thing at all.
While I had my battery out of the Spark I wired in a motorcycle battery for about a month,, bc I'm a slacker.
The battery's duty is to boot up the car at start up. It's so big because legally it has to provide lights in an emergency situation and it has to power the Onstar cell phone receiver and the remote lock receiver for long term parking.

Anyway, the floating voltage differences between an AGM and a SLA battery are minimal, <0.2 Volts typically. Any 'maintainer' will help.
It's the 'Anti-Sulfation' routine that theoretically can add life to a lead acid battery.
Used '14 2LT w/ DCFC. +76 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

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