Battery tech members
07-07-2015, 08:07 AM
#1
MBWorld Fanatic!
Thread Starter
Battery tech members
Hi guys
I just came across this battery
http://www.lithiumax.com.au/#!produc...series-battery
What do you think??
I just came across this battery
http://www.lithiumax.com.au/#!produc...series-battery
What do you think??
07-07-2015, 08:49 AM
#2
MBWorld Fanatic!
Here's what Road & Track thought three years ago Aug 2012). I'm sure that battery tech has advanced significantly since then.
Lithium Batteries - Not Just for Hybrids
These batteries have advantages, but they're certainly not everyone's prime-time choice.
http://www.roadandtrack.com/new-cars...t-for-hybrids/
For 99 percent of the driving population, the 12-volt lead-acid battery that sits under the hood of their car gets about as much attention as a hose clamp. In other words, they don't care about it until something goes horribly wrong. But with advances in technology, some manufacturers have begun offering lithium system batteries with their cars for the remaining 1 percent. But are they ready for your street car today?
In the world of hybrid and EV vehicles, lithium batteries are nothing new. They're in many of the battery-powered electric vehicles currently on the market, like our long-term Mitsubishi i, and don't draw any unnecessary attention to themselves.
And while we know they work fine as motor batteries in EVs, there are some compromises you'll have to make if you decide to use a currently available aftermarket lithium battery as a starter battery for your regular car.
First off, the advantages: Lithium batteries are lighter, can store a charge longer and can withstand charge/discharge cycles better than a lead-acid battery. The ratio of the maximum safe output current possible to the rated capacity of the battery is much higher in a lithium battery; therefore, you need less "rated amps" to accomplish the same amount of work. In other words, they can dump or absorb huge amounts of current in relation to their rating.
Disadvantages: Their output drops much faster than lead-acid batteries as the temperature goes down. If not properly charged, they're much more susceptible to individual cell failures. Unless they're properly constructed with built-in charge circuitry, we really can't consider them plug-and-play compatible with lead-acid batteries. And last, there's the price, as much as $1700 for an OE application, versus maybe $120 for a top-line Sears DieHard.
Now, aside from the damage to your bank account, all the disadvantages can actually be resolved through thoughtful engineering. Unless you own a McLaren MP4-12C, which comes with a lithium starter battery from the factory, the alternator in your car is not designed to properly charge a lithium battery. Some cars, like Porsche's track-oriented models (GT3, GT2, etc.) can be bought with an optional lithium battery. Designed for track use, or even daily use in warmer climates, the battery—which, at just under 13 lb. is more than 22 lb. lighter than the standard lead-acid unit—is built with a charge converter that takes the output from the alternator and converts it for use in the lithium battery. Special circuitry balances the charge current among all four of its internal cells.
So what do you do if you have a weekend fun car, or a car that rarely sees the track? You could run your regular lead-acid battery during the week, and then switch over to a lithium battery for more recreational drives. Cheaper lithium batteries don't offer low-voltage cut-off or proper chemistry, so buyer beware. When you're back home, swap back to your lead-acid unit.
If weight and shelf-sitting power are your biggest priorities, and you're willing to either pay for a fully sorted lithium battery or become proficient at battery-swapping, the current crop of aftermarket batteries is for you. If you'd rather have a more reliable and permanent solution, you'll have to pay for it. As of now, integrated cell monitoring, chemistry designed to be tolerant to production car charge cycles or built-in charge regulators designed for use with lithium chemistry don't come cheaply.
Lithium Batteries - Not Just for Hybrids
These batteries have advantages, but they're certainly not everyone's prime-time choice.
http://www.roadandtrack.com/new-cars...t-for-hybrids/
For 99 percent of the driving population, the 12-volt lead-acid battery that sits under the hood of their car gets about as much attention as a hose clamp. In other words, they don't care about it until something goes horribly wrong. But with advances in technology, some manufacturers have begun offering lithium system batteries with their cars for the remaining 1 percent. But are they ready for your street car today?
In the world of hybrid and EV vehicles, lithium batteries are nothing new. They're in many of the battery-powered electric vehicles currently on the market, like our long-term Mitsubishi i, and don't draw any unnecessary attention to themselves.
And while we know they work fine as motor batteries in EVs, there are some compromises you'll have to make if you decide to use a currently available aftermarket lithium battery as a starter battery for your regular car.
First off, the advantages: Lithium batteries are lighter, can store a charge longer and can withstand charge/discharge cycles better than a lead-acid battery. The ratio of the maximum safe output current possible to the rated capacity of the battery is much higher in a lithium battery; therefore, you need less "rated amps" to accomplish the same amount of work. In other words, they can dump or absorb huge amounts of current in relation to their rating.
Disadvantages: Their output drops much faster than lead-acid batteries as the temperature goes down. If not properly charged, they're much more susceptible to individual cell failures. Unless they're properly constructed with built-in charge circuitry, we really can't consider them plug-and-play compatible with lead-acid batteries. And last, there's the price, as much as $1700 for an OE application, versus maybe $120 for a top-line Sears DieHard.
Now, aside from the damage to your bank account, all the disadvantages can actually be resolved through thoughtful engineering. Unless you own a McLaren MP4-12C, which comes with a lithium starter battery from the factory, the alternator in your car is not designed to properly charge a lithium battery. Some cars, like Porsche's track-oriented models (GT3, GT2, etc.) can be bought with an optional lithium battery. Designed for track use, or even daily use in warmer climates, the battery—which, at just under 13 lb. is more than 22 lb. lighter than the standard lead-acid unit—is built with a charge converter that takes the output from the alternator and converts it for use in the lithium battery. Special circuitry balances the charge current among all four of its internal cells.
So what do you do if you have a weekend fun car, or a car that rarely sees the track? You could run your regular lead-acid battery during the week, and then switch over to a lithium battery for more recreational drives. Cheaper lithium batteries don't offer low-voltage cut-off or proper chemistry, so buyer beware. When you're back home, swap back to your lead-acid unit.
If weight and shelf-sitting power are your biggest priorities, and you're willing to either pay for a fully sorted lithium battery or become proficient at battery-swapping, the current crop of aftermarket batteries is for you. If you'd rather have a more reliable and permanent solution, you'll have to pay for it. As of now, integrated cell monitoring, chemistry designed to be tolerant to production car charge cycles or built-in charge regulators designed for use with lithium chemistry don't come cheaply.
07-07-2015, 11:15 AM
#4
Super Member
for track application, the weight savings is very good. As far as the dollar amount it costs, not sure many people will do it until it is a comparable price point to justify that.
07-07-2015, 06:53 PM
#5
MBWorld Fanatic!
Thread Starter
^^^^ great read thank you
I think im gonna jump on this deal its only 600 aud and to shed all that weight is a no brainer
MY mate has been using this battery in a 335 for the past year and half with no issues
I think im gonna jump on this deal its only 600 aud and to shed all that weight is a no brainer
MY mate has been using this battery in a 335 for the past year and half with no issues
