20
Jun
They will also have smart alternators which vary the charge the system requires. These batteries need an absorption voltage of 147V.
Here is some general info on battery charging see paragraph on deep cycle AGM and on.
Agm battery with standard alternator. Can the car alternators charge AGM batteries. In this short post I will try to shed some light on the issue. In a nutshell the alternator-based charging systems in most cars are intended for flooded lead-acid batteries and will not work optimally with AGM batteries.
With the default charging profile these systems risk both over- and under-charging an AGM battery which is much more sensitive to. AGM batteries are capable of being charged at a faster rate and may draw additional amperage from the alternator if it is not regulated. Many cars that come with AGM batteries have special charge rates newer Porsche Cayennes that come with AGM batteries have a setting in the computer for this for example.
Does the AGM battery charge with a standard alternator. It is significant to highlight that you cannot use a standard alternator in order to charge absorbed glass mat batteries. It is because AGM batteries are charged slowly due to different internal resistance.
Many vehicles now come equipped with an AGM battery. Keep in mind an alternator should not be used as a battery charger. If your battery is dead slow charge it with a battery charger or maintainer compatible with AGM and gel cell and have it tested before you.
Lifeline has a 5 year warranty on their AGM batteries used in RV and Marine applications being charged by a standard alternator. FullThrottle series AGMs have a 4 year warranty. Obviously neither company is concerned about alternator charging.
I sell Lifeline and Fullriver AGMs for a living -. The charging system on a modern vehicle should have no problem charging an AGM battery. I have AGMs on the 911 and RX7 and their alternator amps are about 130.
An AGM was a must due to moving it inside for weight distribution. An alternator will not cannot charge an AGM to full charge. Youll need a battery charger.
A low amp 15 to 3 will keep the battery charged up but dont leave it on charge all the time. Once every 2 weeks all day will do the trick. A big advantage for AGM batteries is not having corroded terminals or damage above the battery from lead acid battery venting gas.
If youre referring to an automotive type alternator then you would probably be best not to use an AGM style battery at all if its under the hood bonnet. AGM batteries are also referred to as starved electrolyte due to the fact that they have a lot less electrolyte than a standard wet type battery. AGM battery is only charging to about 30.
Seems a little young to have a bad alternator and Ive never had an alternator look almost normal like this. I read somewhere that when you install an AGM battery you also need to recalibrate the Battery sensor due to the fact that AGM batteries require a slightly different charging method. With the advent of modern technology most new and recent cars are equipped with stop start technology.
They will also have smart alternators which vary the charge the system requires. The car will also have either a EFB orAGM type of battery. Most caravans will have a standard leadacid battery.
A Deep Cycle Battery Assassin The alternator pictured here helped to destroy a very expensive bank of TPPL AGM batteries in under two years. These batteries need an absorption voltage of 147V. The highest voltage I recorded on this vessel was 1358V at the battery terminals.
Many AGM battery chargers have microprocessors that collect information from the battery and adjust the current and voltage accordingly. Some have different settings for charging flooded or AGM batteries. Overcharging can kill these batteries.
Also alternators are not chargers. Dont rely on an alternator to do the work of a charger. AGM Absorber Glass Matt batteries are currently used as a standard battery next to the extremely expensive LiFePo4 battery.
I can also advise you to use these batteries when you are planning your camper or when the old batteries are worn out. If you keep a. A normal car alternator will only charge a wet-cell type battery to around 70-80 of its capacity.
Because of its higher charging rates an AGM battery will just about fully charge and at a faster rate from the same type of alternator. AGM batteries are capable of charging rates up to 75 of their rated ampere hour capacity. I would do 2 things 1st is a battery isolator - this allows you to run the AGM or any 2nd battery with out draining the starter battery and give a separate charge circuit from alternator the regulator in the alternator may see the starting battery as fully charged and may not put charge current to.
I installed 2 banks of AGM batteries over 6 yrs ago with the original 35 amp alternator on a 2GM20. Over the yrs the only thing that has changed is the alternator first a 55 amp and last yr I found an 80 amp for under 100. This powerful 12V AGM battery makes a good solution for long driving trips.
Even if the cars alternator breaks this battery has spare 90 minutes of the intensive work and will keep the electronics on within this time. It boasts long life and reliable performance at. The ability of an AGM battery charger to be used on a deep cycle battery.
The AGM battery charger may be smaller and more compact than the standard battery charger. AGM battery chargers are usually anti spark battery chargers so they are considered to be safer and easier to use than the older standard battery chargers were. Anyway for fwiw Toyota designs Tundra alternators to charge at Standard Voltage of 132V to 148V and Standard Current of 10 amps or less 2000rpm unloaded to 30 amps 2000rpm loaded.
Where the alternator is on the curve is likely set by the ECU. Here is some general info on battery charging see paragraph on deep cycle AGM and on. Absorbent glass mat batteries AGM have been a market favorite for the past few decades.
At the time they were designed to be a viable alternative to the Ni-Cad batteries which were very costly. Though they were mainly used in military vehicles as a source of back up power and heavy vehicles such as long-distance trucks nowadays they have more diversified uses. Over the course of their lifespan AGM batteries can start an engine more than 60000 times.
Thats more than three times the starts youll get out of a conventional battery. And AGMs recharge faster than typical batteries. Starting your engine depletes your battery only a.
You can charge AGM batteries with your alternator but keep in mind that you need to be going at higher speeds highway for a prolonged period of time not a 20 minute drive to actually charge. A possible way around this is depending on the amperage of the alternator you can always replace it with a high-output alternator but thats expensive. If the vehicle is equipped with a large number of non-standard electrical devices which have an increased power consumption eg.
A sophisticated sound system the AGM battery provides the vehicle with the necessary power which a conventional wet battery cannot provide. AGM Batteries The first choice for light commercial vehicles. In commercial use vehicles are often used for multiple shift.