NOCO and dead battery

[Andy@AAV]

Was it cold out? Lithium batteries don't work well below freezing.

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[Jebiruph]

The information in this post applies here. https://www.jlwranglerforums.com/fo...ain-battery-vs-n1-terminal.87726/post-1827726

 

[BUSHRVN]

I’ve had the GB70 for about 5 years and have boosted lots of vehicles in every temp including-30’s and 6.7 Cummins diesels with it many times. Never have had a problem. Its sits under the back seat in my Ram 3500 year round and through Canadian winters, reached -48C this winter for 4 days straight. I top it up maybe every 6 months or so.
Just got a GB 45 for the Jeep ecodiesel and to take on the jet boat for remote river runs.
No complaints on Noco here.

 

[SoK66]

If the aux battery has bricked the combined battery draw will suck a portable jump starter dry pretty quickly. You can try just connecting it to terminal #2 on the fuse strip (under the fuse box lid, the row of terminals). That puts the current directly to the main battery. It can provide a bit of extra bump.

Whatever, you're in need of at least a replacement aux battery.

 

[hamiamham69]

I would write to NOCO, tell them the pack was unable to to jump your engine when you needed it to and - perhaps - they send you a new unit.

Personally I never trust the “bars” on any device with a Lithium battery. On these batteries the initial period of “bulk” charging trails off to a trickle when the battery reaches certain levels of charge.

M

 

[SargeDiesel]

Assuming these are the size numbers you are talking about:
My NOCO = 2000A
AAA guy pack = 1700A
I would think if my size is higher by these numbers, it should have worked.
Attached is a picture of AAA guy's pack he used. Also attached, my NOCO currently charging.

I love my NOCO products. I own the 50, 70 and the NOCO-10.

I've never had any issue. Theoretically , the GB70 should crank a vehicle almost 3 times the size of the Jeep.

To bad you didn't get an initial voltage to see just what state your battery was in prior to trying to jump start it.

Regardless, I'm glad you got it going. Based on the overall reviews with NOCO products, I wouldn't put too much thought into AAA opinion.
If you are having an issue with the NOCO, their CS is good.

 

[SargeDiesel]

By way of example, and without accusation , the advice given to me by Antigravity (the brand that I use) is to ensure the jump pack is discharged before plugging it in. 1 bar is acceptable when recharging, 2 is ok but only occasionally, but 3/4 bars should be left undisturbed.

My Micro-Start is probably 7 years old and continues to function as new.

We use the same M.O. for my wife's HALO Bolt lithium jump pack.

This

These newer hi-tech batteries like to sit around 85-90%. Typically they can maintain their charge for a pretty extended period of time, 3-6 months easily. As stated, it is not good to charge them "just because". Do not charge them above 4.2v per cell and don't discharge them below 3.0v per cell.

With that said, things happen, possibly your unit is defective. If you believe this is the case, call CS and see what they have to say.

I hope you get it figured out and I am very glad you didn't get stranded in the middle of nowhere.

 

[SargeDiesel]

I guess you all did not read the forum report of defective NOCO internal batteries.
Lots of advertising does not equal a great product.
The internal batteries die with age and exposure to temperature above ambient.
Try another brand

The internal batteries die with age and exposure to temperature above ambient.
Try another brand

? aren't you describing every type of LiPo battery there is ?

Here is one of many references to help people understand more about these types of batteries:
https://www.gensace.de/blog/temperature-affect-lipo-battery-performance/

Can you please provide the forum source claiming NOCO having defective batteries . I tried to find it, no joy. I would like to take a look, since I own several of their products.

Thanks

 

[SargeDiesel]

I wouldn't replace it, or remove it. I'd suggest merely bypassing it - five minute job.

Maybe, but if you are going to keep it in play, BOTH BATTERIES should be changed at the same time.

 

[SargeDiesel]

OP, Did you use the manual overide feature on the GB70?

I was going to ask the same. I mentioned to him if he knew the state of his battery before trying to jump start...

I'm curious as to what voltage it was at.

Good pointing this out, even if he didn't require it. ?

 

[SargeDiesel]

2000A is a current rate. Ah (amp hours) is a measure of capacity.

It's like the difference between how fast water comes out of a garden hose vs how much water ends up on the garden due to the time the hose is running.

The NOCO GB70 has about a 5 Ah capacity. At 22Ah, the JNC660 capacity is nearly 5X larger.

JL Main and Aux/ESS batteries have a combined 80+ Ah capacity. So, the GB70 can restore about 6% and the JNC660 about 26% of JL start battery capacity.

The starter only needs a few hundred of the 2000 A to turn over the engine, but your bad batteries were sucking too much of the juice for the starter to get what it needed. And even after the batteries sucked the little NOCO dry, they were too low to start the vehicle.

Think of it as "MORE CUSHIN FOR THE PUSH-IN"?

Not necessarily better , just more of it !

 

[SargeDiesel]

Specific to defective NOCO internal batteries
Plenty of issues described if you do a Google search
Here is one

Thanks, but you referenced a FORUM post.

I tend to trust the members here more and wanted to read about their experiences before I jumped into the deep waters of Google.

Thanks though.

 

[jellis4148]

The NOCO looks almost dead in the pic. Also did hit the exclamation point for the boost? I have one I use at the dealership. If the battery is really dead you have to hit the boost and wait about 15-30 seconds.

 

[Heimkehr]

I am researching the aux battery bypass now, the fuse pull/aux battery negative cable disconnect.

Just need to see which negative cable, at the main battery, to disconnect/tape off/ tuck away. Any thoughts on this?

The diameter of the negative cable for the ESS battery is a bit smaller than the same for the main battery.

Here's the guidance previously provided:
https://www.jlwranglerforums.com/fo...aux-battery-bypass.95945/page-45#post-2651147

 

[SonofaSeabee]

By-Pass done. 20 minute test drive showed no ill side effects, no warning lights or messages. Should be good to go.

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