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i just got a new interstate battery installed by my Indy, which is really a large reputable independent shop.
I am told battery was coded with PIWIS and on visual inspection looks brand new.
I came home and connected it to my trickle charger expecting it would show a full or close to full charge. But it has now been three hours and it is showing just two of the fore lights.
Could it be that this brand new battery was not fully charged? The change took about an hour at the shop.
I just got a new interstate battery installed by my Indy, which is really a large reputable Porsche independent shop.
I am told battery was coded with PIWIS and on visual inspection looks brand new.
I came home and connected it to my trickle charger expecting it would show a full or close to full charge. But it has now been three hours and it is showing just two of the four
lights.
Could it be that this brand new battery was not fully charged? The change took about an hour at the shop.
it's extraordinarily likely that the battery has been sitting on a shelf for weeks-to-months. this is completely normal and not something to be worried about. an AGM can sit on a shelf for a couple years before you will need to actively charge it.
if you don't drive frequently, or only drive very short distances, then put it on a real charger to top it off. otherwise, just drive as normal. maintainers are wildly unnecessary for driven cars.
As others have said, this is quite normal, though I don't think it is really satisfactory. Most batteries that I purchase are less than 90% charged, and I always hit them with a real charger overnight before installing.
BTW, I'm not sure about Interstate, but Odyssey's AGM battery manual shows that 52 weeks of storage at 25 C would take a battery under 75% capacity, and this gets much worse for higher storage temperatures. Odyssey says their AGM batteries are fully charged at 12.84 V, with 75% charge corresponding to about 12.5 V.
You have to wonder what the cut-off voltage is on all these trickle battery chargers that just have LED lights for a display. I like the Harbor Freight ones that give you an shows you the voltage all the time, both when it's charging and when its idle.
Attempt to check the manufacture date before purchase . An old battery will not start my motorcycle , new will. Most of my new rides have always needed battery replacement .
I'm not sure about that Porsche branded CTEK maintainer (it's a low-end model that Porsche charges way too much money for) but on my CTEK MXS 5.0 it takes a couple days for all the lights to illuminate ... Even if I've just come from a long drive
if you Google "why does it take CTEK battery maintainers a long time to show full charge?" it will talk about the eight steps that the maintainer goes through. I'm not sure if that's true with yours. It also has a battery recondition mode which takes a long time.
As others have said, this is quite normal, though I don't think it is really satisfactory. Most batteries that I purchase are less than 90% charged, and I always hit them with a real charger overnight before installing.
BTW, I'm not sure about Interstate, but Odyssey's AGM battery manual shows that 52 weeks of storage at 25 C would take a battery under 75% capacity, and this gets much worse for higher storage temperatures. Odyssey says their AGM batteries are fully charged at 12.84 V, with 75% charge corresponding to about 12.5 V.
You have to wonder what the cut-off voltage is on all these trickle battery chargers that just have LED lights for a display. I like the Harbor Freight ones that give you an shows you the voltage all the time, both when it's charging and when its idle.
you bring up a good point with these number-of-lights state of charge indicators.
hell, even a voltage reading is practically meaningless for anything other than a very rough guess at the state of charge, at least for AGMs. temperature plays into it quite a bit. there's a chart that gets posted on here now and again showing the float voltages by temperature for AGMs, it's kinda wild.
As mentioned above, manufacture dates matter. The battery warranty is from date of purchase not date of manufacture. I have seen batteries 12 months old being sold in Pep boys. In any case, I would not buy a battery with a manufacturer date over 45 days old due to the fact they are not being charged on the shelf and you are losing warranty$$$. In your case, just drive it and forget it but next time check.
As others say it normal... and even if you take your charger off the battery after it gets a full charge on the battery, then reconnect it, it would go through a lengthy process (at least on the CTEK) of 30 mins or so to appear to charge the battery again.
CTEK, NOCO, OPTIMATE all use the LED lights.... and it not very good in this day and age. So we actually developed a new generation charger, with features not seen in other chargers, and the ability to do more and have modern features like on-board voltage tester, large digital screen to show the actual voltage and amps going to the battery during charging, a BMS reset for if you have lithium. Lastly for modern Cars and batteries that are 70Amp Hours you should be usingg a 10Amp Charger, those 4 and 5 amp chargers are just simply very slow.
Here's some actual facts about our newer Antigravity Batteries Super Chargers...
One Charger to Charge any vehicle you have. We wanted our Chargers to work with ALL 12v Starter Batteries Lead/Acid or Lithium. So we designed it to charge any12v Lead/Acid format (AGM,FLA, GEL) AND 6v and 12v Lifepo4/LFP Lithium formats. So the Super Charger is the only Charger you would need in your Garage for any of your Vehicles.. be it Cars, Trucks, Motorcycles, or other vehicles. You can also leave the Charger connected to act as a Maintainer or Charger full time.
We didn’t want LED dummy lights in Chargers, they don’t give enough information. We believe the LED lights are outdated and not informative enough, so we designed a Large Digital Screen to easily understand what is going on with the Charger. For example our charger shows the real-time Voltage and Amps going into the Battery, it informs you of any faults, allows you to easily see the Capacity it has Charged to, and to choose which type of battery you are charging, and what mode you are in with a glance. Once you have used a Digital Screen you will no longer want to deal with LED lights.
We wanted a built-in Voltage Tester… so we put one on the Charger! We test batteries a lot, so we wanted a Charger to have a built-in Voltage Tester so we could just connect the clamps and see the battery voltage without pulling out a Multi-meter. A simple idea, yet no other Charger brands have done it. It makes a quick test of your battery easy.
No proprietary connectors… We didn't like the “proprietary” connectors that CTEK and NOCO use. They limit the choices in adapters and lengths of connectors you may want, and force you to use only their expensive proprietary accessories. So, we went with the industry standard SAE type connector so you can easily find any accessory cable you want and find replacement parts at local stores instead of needing a special proprietary connector. Please note, we provide everything you need with our Super Chargers including a Pigtail, Clamps and Cig Lighter adapters.
Lithium Battery BMS “Wake-up” Feature. Since we make Lithium Batteries we wanted our new Super-Charger to have a built-in Lithium Battery BMS Wake-Up feature so the Customer could awaken their Porsche or other Brand of Lithium Battery if it goes into sleep/protection mode. So we have a mode designed just for that.
Built-In Power Supply. We wanted to have a Power Supply because that is a good feature to use if you want to power 12v DC devices or keep power going to your Cars system if you change out a Battery (so you don’t lose settings). It can also power other 12DC devices like inflators, and we include a Cig Lighter Adapter to power your devices that use that type of connector.
So if you are looking into the purchase of a new Charger please consider us, and we offer our 60 day Money back guarantee!
I normally run about a 5 foot long pigtail with a fuse to get the connector out from the car body work. Is it safe to use a 15 amp fuse with this in order to utilize your 10 amp supply?
Originally Posted by Antigravity
As others say it normal... and even if you take your charger off the battery after it gets a full charge on the battery, then reconnect it, it would go through a lengthy process (at least on the CTEK) of 30 mins or so to appear to charge the battery again.
CTEK, NOCO, OPTIMATE all use the LED lights.... and it not very good in this day and age. So we actually developed a new generation charger, with features not seen in other chargers, and the ability to do more and have modern features like on-board voltage tester, large digital screen to show the actual voltage and amps going to the battery during charging, a BMS reset for if you have lithium. Lastly for modern Cars and batteries that are 70Amp Hours you should be usingg a 10Amp Charger, those 4 and 5 amp chargers are just simply very slow.
Here's some actual facts about our newer Antigravity Batteries Super Chargers...
One Charger to Charge any vehicle you have. We wanted our Chargers to work with ALL 12v Starter Batteries Lead/Acid or Lithium. So we designed it to charge any12v Lead/Acid format (AGM,FLA, GEL) AND 6v and 12v Lifepo4/LFP Lithium formats. So the Super Charger is the only Charger you would need in your Garage for any of your Vehicles.. be it Cars, Trucks, Motorcycles, or other vehicles. You can also leave the Charger connected to act as a Maintainer or Charger full time.
We didnt want LED dummy lights in Chargers, they dont give enough information. We believe the LED lights are outdated and not informative enough, so we designed a Large Digital Screen to easily understand what is going on with the Charger. For example our charger shows the real-time Voltage and Amps going into the Battery, it informs you of any faults, allows you to easily see the Capacity it has Charged to, and to choose which type of battery you are charging, and what mode you are in with a glance. Once you have used a Digital Screen you will no longer want to deal with LED lights.
We wanted a built-in Voltage Tester so we put one on the Charger! We test batteries a lot, so we wanted a Charger to have a built-in Voltage Tester so we could just connect the clamps and see the battery voltage without pulling out a Multi-meter. A simple idea, yet no other Charger brands have done it. It makes a quick test of your battery easy.
No proprietary connectors We didn't like the proprietary connectors that CTEK and NOCO use. They limit the choices in adapters and lengths of connectors you may want, and force you to use only their expensive proprietary accessories. So, we went with the industry standard SAE type connector so you can easily find any accessory cable you want and find replacement parts at local stores instead of needing a special proprietary connector. Please note, we provide everything you need with our Super Chargers including a Pigtail, Clamps and Cig Lighter adapters.
Lithium Battery BMS Wake-up Feature. Since we make Lithium Batteries we wanted our new Super-Charger to have a built-in Lithium Battery BMS Wake-Up feature so the Customer could awaken their Porsche or other Brand of Lithium Battery if it goes into sleep/protection mode. So we have a mode designed just for that.
Built-In Power Supply. We wanted to have a Power Supply because that is a good feature to use if you want to power 12v DC devices or keep power going to your Cars system if you change out a Battery (so you dont lose settings). It can also power other 12DC devices like inflators, and we include a Cig Lighter Adapter to power your devices that use that type of connector.
So if you are looking into the purchase of a new Charger please consider us, and we offer our 60 day Money back guarantee!
I normally run about a 5 foot long pigtail with a fuse to get the connector out from the car body work. Is it safe to use a 15 amp fuse with this in order to utilize your 10 amp supply?
Ok, I get what your saying, you have an extra long pigtail. So I am assuming that you are thinking that the longer pigtail will create sa situation where you need a larger 15A fuse? My answer would be that we ask you to stick with the 10A fuse because that was what the wire gauge and charger were designed for. Our charger puts out a MAX of 10 Amps so it should not trigger a fuse even being that the longer cable will create more resistance, it should not effect the fuse, also just for liability sake you should never go beyond what is rated for the wire gauge. You will in fact loose a lttle efficiency in charging with the longer pigtail, but I do not believe if this will create a need for a 15A fuse. If anything just get a thicker (lower) wire gauge pigtail if you can find one. Again, not sure I'm completely understanding your question, but the answer will still be valid for answering if you should go with a larger fuse.
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Battery question
