Octopus Electrical Service


LA=: Lead Acid Battery    

LI or LiFePo4 =: Lithium Phosphate Batteries

BMS=: Battery Management System


Benefits of Using Lithium Iron Phosphate (LiFePo4) Batteries Than Lead-Acid – AGM -Gell-Flooded Batteries

If you are tired of using LA batteries that do not last you long, use a lithium LiFePo4  battery. A lithium iron phosphate battery has many benefits in different areas. Compared to the LA batteries,  it is now about the same cost as LA as well. Now the batteries are well-priced and because of the benefits they provide are quickly taking LAs Place.  Mentioned below are some of the huge benefits of using lithium batteries over lead-acid batteries.


The lifespan of lithium batteries is extremely long. They can give more than 5000 cycles at the  80 to 90% depth of the discharge level.  It can live up to this long period without a decrease in its performance. This lifespan is much  longer than other batteries like lead-acid batteries. As these  LA only last for two years or so . So lithium batteries are extremely beneficial if you want a battery to last you a long time.  Also at the end of there cycle life, like say 5,000 cycles then they still have 80% of there original capacity left, where a LA battery is scrap material only.


A lithium iron phosphate battery (LiFePo4) while in daily use, can use close to 100% of its capacity multi times per day. They are considered to be a great fit for all kinds of high usage applications as they have a fast charge and high discharge rates. There is also a great increases in there efficiency. Because of this, high power usage can be used in a short amount of time. This is unlike the deep Cycle  lead-acid batteries, which are not so efficient as they do not have a high discharge/charge rates like the LiFePo4 batteries do.  of note is if you take 100 amp hours out of a LA battery then you have to add back at least 125 A/Hs and charge for 4 plus hrs to refile,  HOWEVER with a LiFePo4  you only have to add back 105 A/Hrs  and you can do this in 30min or less so at least a 25% saving on a round trip without allowing for the extra charging time.


These batteries also do not have a regular maintenance schedule. They can rest for long periods of time without damage. The batteries also do not show any memory effects or a slow discharge. The lead-acid batteries are in constant need of maintenance. Otherwise, their lifespan decreases. So, lithium phosphate batteries are far more beneficial. The only down side is that they are badly damaged if they are 100% Discharged EVEN one time, so a BMS is very important as this disconnects the battery before this happens.

Discharge Rates

A lifepo4 battery are made specially to handle high discharge rates from 1C to 3C (this means 1 to 3 times its capacity in amps that can be discharged). This ensures that heavy power usage items like Inverters running Air conditioners and other high power items can be now used  and several electronic devices can be used at the same time without worrying about voltage drop and cycling of the batteries. It is a far better option than lead-acid batteries as they cannot handle high discharge rates  and are very limited  in cycle life and need constant maintenance. This is why using LiFePo4  batteries is so beneficial.

Charging Rates

The LiFePo4 batteries can accept huge charge rates from 1C to 2C  this means that you can charge them very quickly, and the amps going in stay at the full rate until they are 95% charged so there is no need to do the topup charge that LA batteries require.  This makes a big difference with much lower generator and engine charge times.

Different Battery Grades

When looking up the LiFePo4 batteries usually the cheap ones are Grade B Cells

 These were just some of the benefits of using lithium batteries. One can easily find these at our online shop   a lifepo4 battery in Phuket Thailand. They make the usage of All high power  devices easy. They also provide other benefits like lighter weights and smaller sizes. Using them is a much better option than lead-acid batteries.


Lithium phosphate LiFePo4  batteries are much safer than lead-acid batteries as if any LA chemicals get into salt water then chlorine gas is produced which is deadly. This is because it not only involves the latest technologies but also includes many safety measures that avoid risks like overcharging/under (BMS required) and leakage and they operate safely at much higher operating temperatures without degradation . also the LiFePo4 batteries are extremely stable and the fire risk is ultra low even in extreme situations as per the pictures below However, lead-acid batteries, if not specially maintained, can cause safety risks like leakage and explosion. Thus, lithium-ion batteries are a much safer option.

The photo of the short-circuited 3.2v Cell– 4000 Amp

The direct short circuit of the terminals of the LFP cell. The internal resistance of this type of the cells is usually bellow 0.30 mOhm. It means that one cell is able to generate up to 10 000 Amps of short circuit current. When adding the resistance of the terminals and the resistance of the metal object, the real current may be between 4000 to 6000 Amps.

Since the large capacity cells are able to provide high short circuit currents, it is always important to protect against accidental short circuits.


The photo of the short-circuit – 4000 Amp
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