- AMARON
- AUDI +-
- BANNER AGM
- BMW +-
- CHERY +-
- CHEVROLET +-
- CITROEN +-
- FERRARI +-
- FORD +-
- HAVAL +-
- HONDA +-
- HYUNDAI +-
- KIA +-
- LAND ROVER +-
- Lithium Starter Batteries
- MAZDA +-
- MERCEDES-BENZ +-
- NAZA +-
- NISSAN +-
- PEUGEOT +-
- PORSCHE +-
- PROTON +-
- SSANGYONG +-
- SUBARU +-
- SUZUKI +-
- VARTA
- VOLKSWAGEN +-
- VOLVO +-
- CENTURY MARATHONER MAX
- TOYOTA +-
- PERODUA +-
- CENTURY MOTOLITE
- ISUZU +-
- MINI +-
- MITSUBISHI +-
What
are some differences between Lithium and AGM batteries?
Different Lithium
Technologies
Firstly, it is important to note that there are many types of
“Lithium Ion” batteries. The point to note in this definition refers to a
“family of batteries”.
There are several different “Lithium Ion” batteries within this family which
utilize different materials for their cathode and anode. As a result, they
exhibit very different characteristics and therefore are suitable for different
applications.
Why LiFePO4?
Of all the lithium options available, there are several reasons
why LiFePO4 has been selected as the ideal lithium technology for replacement
of SLA. The main reasons come down to its favourable characteristics when
looking at the main applications where SLA currently exist. These include:
·
Similar voltage to SLA (3.2V per cell x 4 = 12.8V) making them
ideal for SLA replacement.
·
Safest form of the lithium technologies.
·
Environmentally friendly –phosphate is not hazardous and so is
friendly both to the environment and not a health risk.
· Wide temperature range.
Features and benefits of
LiFePO4 when compared to SLA
Below are some key features LiFePO4 batteries which give some
significant advantages of SLA in a range of applications. This is not a
complete list by all means, however it does cover the key items. A 100AH AGM
battery has been selected as the SLA, as this is one of the most commonly used
sizes in deep cycle applications. This 100AH AGM has been compared to a 100AH
LiFePO4 in order to compare a like for like as close as possible.
Lithium Iron Phosphate (LiFePO4)
Lithium Iron Phosphate (LiFePO4) is a well-known lithium
technology due to its wide use and suitability to a wide range of
applications.
Characteristics of low price, high safety and good specific energy, make this a
strong option for many applications.
LiFePO4 cell voltage of 3.2V/cell also makes it the lithium technology of
choice for sealed lead acid replacement in a number of key applications.
Feature – Weight:
Comparison
·
LifePO4 is less than half the weight of SLA
·
AGM Deep cycle – 26 to 28Kg
· LiFePO4 – 8 to 12Kg
Feature – Greater
Cycle Life:
Comparison
·
Up to 6 time the cycle life
·
AGM Deep cycle – 300 cycles @ 100% DoD
·
LiFePO4 – 2000 cycles @ 100% DoD
Benefits
·
Lower total cost of ownership (cost per kWh much lower over life
of battery for LiFePO4)
·
Reduction in replacement costs – replace the AGM up to 6 times
before the LiFePO4 needs replacing
The greater cycle life means that the extra upfront cost of a
LiFePO4 battery is more than made up for over the life use of the battery. If
being used daily, an AGM will need to be replaced approx. 6 times before the
LiFePO4 needs replacing
Feature – Flat
Discharge Curve:
Comparison
·
At 0.2C (20A) discharge
·
AGM – drops below 12V after
·
1.5 hrs of runtime
·
LiFePO4 – drops below 12V after approximately 4 hrs of runtime
Benefits
·
More efficient use of battery capacity
·
Once voltage starts to drop off, battery will need to supply
higher amps to provide same amount of power.
·
Higher voltage is better for electronics
·
Longer runtime for equipment
·
Full use of capacity even at high discharge rate
·
AGM @ 1C discharge = 50% Capacity
· LiFePO4 @ 1C discharge = 100% capacity
This feature is little known but is a strong advantage and it
gives multiple benefits. With the flat discharge curve of LiFePO4, the terminal
voltage holds above 12V for up to 85-90% capacity usage. Because of this, less
amps are required in order to supply the same amount of power (P=VxA) and
therefore the more efficient use of the capacity leads to longer runtime. The
user will also not notice the slowing down of the device (golf cart for
example) earlier.
Along with this the effect of Peukert’s law is much less
significant with lithium than that of AGM. This results in having available a
large percentage of the capacity of the battery no matter what the discharge
rate. At 1C (or 100A discharge for 100AH battery) the LiFePO4 option will still
give you 100AH vs only 50AH for AGM.
Feature – Increased
Use Of Capacity:
Comparison
·
AGM recommended DoD = 50%
·
LiFePO4 recommended DoD = 80%
·
AGM Deep cycle – 100AH x 50% = 50Ah usable
·
LiFePO4 – 100Ah x 80% = 80Ah
·
Difference = 30Ah or 60% more capacity usage
Benefits
·
Increased runtime or smaller capacity battery for replacement
The increased use of the available capacity means the user can
either obtain up to 60% more runtime from the same capacity option in LiFePO4,
or alternatively opt for a smaller capacity LiFePO4 battery while still
achieving the same runtime as the larger capacity AGM.
Feature – Greater
Charge Efficiency:
Comparison
·
AGM – Full charge takes approx. 8 hours
·
LiFePO4 – Full charge can be as low as 2 hrs
Benefits
·
Battery charged and ready to be used again more quickly
Another strong benefit in many applications. Due to the lower
internal resistance among other factors, LiFePO4 can accept charge at a much
great rate than AGM. This allows them to be charged and ready to use much
faster, leading to many benefits.
Feature – Low Self
Discharge Rate:
Comparison
·
AGM – Discharge to 80% SOC after 4 months
·
LiFePO4 – Discharge to 80% after 8 months
Benefits
·
Can be left in storage for a longer period
This feature is a big one for the recreational vehicles which
may only be used for a couple of months a year before going into storage for
the rest of the year such as caravans, boats, motorcycles and Jet Skis etc.
Along with this point, LiFePO4 doesn’t calcify and so even after being left for
extended periods of time, the battery is less likely to be permanently damaged.
A LiFePO4 battery is not harmed by not being left in storage in a fully charged
state.
So, if your applications warrant any of the above features then
you will be sure to get your monies worth for the extra spent on a LiFePO4
battery.
At Sealed Performance Batteries, we are a battery company which
has been around for 25 years and have in depth experience and knowledge of a
wide range of battery technologies. We have been selling and supporting Lithium
batteries for many years into many applications.
The battery has an emergency jump-start feature built into it, so if you accidentally leave your lights on or the battery fully discharges for some other reason, the battery puts itself to sleep and maintains a reserve capacity that can provide four or five more engine starts so you can get the car running again.
With internal management system that makes these batteries safe and durable, it protects the lithium from getting into situations where thermal runaway could be an issue due to overcharging or other problems. And the type of lithium chemistry we're using is iron phosphate, or LiFePO4. In general, this is considered to be the safest lithium technology available today.
Which car's original Starter Battery is using Lithium Battery? :
- Mercedes S63
- Porsche Cayenne
- Lamborghini Urus


Battalion Lithium Iron Phosphate Battery EURO70
ProLife Lithium Battery (LifePO4) PL-LN2 (DIN60)
ProLife Lithium Battery (LifePO4) PL-LN5 (DIN100)
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