I'd set it to the snowflake mode, but we had some power outages over the winter, so it might have reverted to the default mode. I never thought to check, so thanks for the heads up about that.

 

I had one CTEK fail, but these two seem to be working correctly. The one connected to the Miata recovered the battery, and both cycle through normally. I coiuldn't get the Optima to recover despite an overnight reconditioning or using a conventional battery charger to attempt to start the car. It must have had an internal failure.

I obsessively date things because of premature failure situations like this.

 

The majority of battery chargers (smart chargers?) on the market today will not try and charge a highly discharged battery because they appear to test for a minimum voltage reading.

To try and recover a highly discharged battery, you need a "Dumb" charger or directly connect up a charged battery, let it bring the voltage up on the discharged battery and then transfer the charging battery to the "smart charger". The highly discharged battery can "appear"
to fully recover but I am always suspicious of them after that much discharge.

 

As an FYI, I see a few of you saying that you had to recharge the battery, or jump start it when talking about the Optimas and others. And yes I understand the AGM battery is significantly Cheaper than a Lithium Battery.

But the fact is that our Antigravity Lithium Battery has WIRELESS built-in Jump starting and a full Battery Management system with protections again over-discharge, over charge, over -current and alot more, but the point being is that there is a possibility of the Lead/Acid being damaged by over-discharge, then with our battery you would not have even had to hook up or mess around jump starting the battery because it WIRELESS so you would simplyt press the Keyfob we provide, never even having to have seen the battery and started the Car, and not having chanced the battery being damaged. So yes it more expensive but it eliminates the hassle and potential damage to a lead acid battery that happens from over - discharge that the Lithium battery won't ever have.

So just as an FYI is an option that might see expensive initially but will save you time, give you 2x to 3x the lifespan, not risk damaging the battery on an over discharge, save you 35 lbs just swapping out the battery, make is so you will NEVER be stranded again by a dead battery... so if interested look into this type of battery, it not just smoke and mirrors for that extra cost.

 

That’s a good suggestion.. After the CTEK didn’t recover the battery, I used an old school battery charger that showed a high initial chart rate that then dropped to what you’d expect from a fully charged battery, but the car behaved the same way - starter motor clicking but not engaging.

 

I once deeply discharged one of my Odyssey AGM batteries and followed these directions with success:

Do this first to bring the battery charge up https://www.odysseybattery.com/wp-co...gedODYSSEY.pdf

Do this next as part of a reconditioning process https://www.odysseybattery.com/wp-co..._Procedure.pdf

 

If it is such a great battery ie 2X to 3X lifespan why does it have a warranty comparable to a " cheap" battery?

 

Agree. If it had a 10 year warranty and all those great features, I'd buy them, but can't justify the price difference when I'm getting 8-14 years of life from my Optima Yellow Tops.

 

New Optima batteries are crap now, won't last long like they were before as they moved their factory to Mexico and changed how they are made to cut cost.

 

Sorry about this slight diversion. I noticed my battery hold down clamp was lying loose. I got the correct flange bolt from a local dealer but they did not know how the bolt was attached to the mounting plate. The plate just has a plain hole with no threads.

I slid a nut underneath the mounting plate (no room for fingers but I used a 13mm open end) and managed to get the flange bolt tightened so the battery is now secure. But clearly this is not correct, does anyone know the correct setup for the hold down clamp? Thanks!

 

Agreeing with Petza914 , upgrade to a 10 year warranty (without a price increase) and I'm a buyer. My Bosch AGM is dated 3-1-2017 and still strong aided by my judicious use of my Schumacher battery extender charger

 

‘Same battery and experience as yours, using ctek trickle charger and going strong as well. My battery is from 4/2018.

 

Sorry didn't see this earlier... This is a great question.

So the fact of the matter is we sell a battery device, and being blunt it sort of a rough market overall because batteries are not a mechanical product, and while we can do the best we can to make what we feel is the best product, it can fail for certain reasons directly related to the maintenance by the customer as well. If we sold a wrench, its a piece of metail guarenttee it for life..... easy as pie.

If we sell you a battery that has protections that will prevent it from being damaged in almost every situation we can think of , but for what ever reason you left it the battery without charging it for about a year because your car was in storage, or broken, or whever then that battery will suffer from something called Natural Discharge, and even though we have over-discharge protection for the battery , we cannot ever prevent Natual Discharge due to the chemical reactions inside a battery cells which slowly but surely drain a battery eventually. So a battery will self-discharge eventually even when it has the over-discharge protectoins we put in. So if the Customer did not maintain it for over a year and it over-discharges from natural discharge, then that is actually not due to the battery cells failure or manufacturing defect or the BMS failure, it was lack of maintenance, which is beyond our control.

Keep in mind we also sell a Deep Cycle Lithium Battery that offers a 10 year warranty, becuase it uses cell packs that are much higher Amp Hours, so can't "self-discharge" nearly as fast as the much small Starter Batteries we offer, it also a Lithium cell type that is a much lower performance and not as stressed as much as a starter battery that in some cars can be subjected to higher current pulses much more often. So a much longer warranty is possible since the variables are not a broad.

In the end we are just weighing what holds up in a particular use, the warranty is not an indication of the life you will get with the battery, we already have had them in our vehicles and in many others with exceptional lifespans. It more about limiting a certain liability that can be customer related also, in the form of maintenance. But overall if you looking at the warranty itself as the value of the Antigravity Battery then I'm sorry it won't really work like that. The warranty does not reflect the trust we have in the product, but it does reflect that if the Customer doesn't do their part also, then it could fail. That is a deal breaker for some and we understand that.

The value of the Antigravity Battery is more tied up in it features, abilities and life cycle when maintained and used normally. You won' t ever be stranded again by a dead battery, you won't ever be locked out of your frunk n a Porsche, you will gain performance from the lightweight. Your wife , kids or anyone can easily start the car and get out of an emergency even if they know nothing about jump starting a car simply by pressing a Wreless keyfob if the battery was drained and they are stuck somewhere. Keep in mind we are not just selling to the Porsche community or sports cars, we are getting big traction in the SUV and passenger market where they don't care about the 35lbs weight saving at all.

Anyway we do understand all these points such as you brought because they are brought up often, some love the technology, some say its not needed, others think the price is to high (working on that with some new products), others dislike us just for posting on Renn alot. It runs the gambit, but the products do what we say, we are used in the new Ford GTD Mustangs and Pagani Eutopias.... so the product is being trusted and the value being realized more and more and some cost saving abilities are presenting themselves so this new technology is starting to really prove itself out. As usual it just about what the Customer personally wants and if they feel it worth it to their particular Car use.

 

Well we are in testing on some cool stuff, hoping for end of year arrival, but significant price reduction, great performance, but eliminating some features to achieve it such as wireless Re-Start. So we'll see where that get us, but it flat out cool. Just testing alot right now.

 

I put in an H7 AGM - Energizer brand. Great battery - highly recommend switching to AGM.
I don't drive it in winter but if I did, I'd get the H8 - for spring/summer no issues with an H7 at all and will last you 5 years.