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EV Today: Need more Range? Switch to Sports

Source: Electric Car Scheme EVs are currently a totally new technology which is emerging in today’s time. As a result, many new owners and potential buyers has great interest in knowing about their functioning and how they perform under extreme tests. This is also leading to a huge confusion among potential EV buyers about what kw of battery will give a particular amount of range. This becomes even complex as its not constant always. Several factors affect the range which you can extract from a particular battery capacity. List of factors which can affect the range of an electric vehicle are listed below 1.        Tyre pressure 2.        Wind Resistance (Car Aerodynamics) 3.        Car Weight 4.        Tyre profile 5.        Driving pattern 6.        Battery Capacity 7.     ...

Does latest Tata cars have active balancer support?

Source: Tata Motors We all know that earlier versions of tata cars only had passive balancers which was causing issue with battery balancing over a longer run. Because of this few of the battery packs were also required to be balanced externally in order to bring them back to operational conditions. Since a very long time it was being believed that Tata EV cars are only using passive balancers for balancing their battery packs. But recent studies done by us has revealed results of possibility of presence of Active Balancers in recent cars. Passive Balancer: It is a kind of balancer which only balances all the cells of the battery pack when it is charged all the way up to 100% and having a voltage delta. Active Balancer: This balancer has the capability to balance the cells of the battery pack whenever it finds voltage delta between the cells of the battery pack. Hence, this can prove to be better option and convenient too for having a balanced battery pack with minimal issues. Fo...

Charging Recommendations for NMC batteries

Source: HopptBattery In EV industry, mainly 2 types of batteries are commonly used in today's time. These batteries are either NMC batteries or LFP batteries. Both these batteries are having their own unique properties which makes them suitable for different applications. In this article, we will be primarily focusing our attention on NMC batteries. NMC batteries are in application since a long time from teslas because of the simplicity of their usage and application. But with time, as need arised, different varieties of lithium batteries were developed. But still NMC batteries are quite popular in number of electric vehicles all around the world. Even though being used in lesser number of electric vehicles, still NMC batteries form significant number in 2 wheeler ev's. Even though NMC batteries provides quite lots of benefits over LFP batteries, people dont tend to choose NMC over LFP batteries. Due to the higher number of usage, one needs to learn best practices to follow whi...

BYD Balancers: Are they really perfect?

BYD Blade Battery. Source: BYD LFP or LifePo4 batteries are gaining alot of momentum in recent times due to the robustness of its chemistry. This chemistry is capable of sustaining extreme temperatures + other climatic conditions without having much impact on its health. The only thing that can affect LFP battery is the imbalance which exists in the battery pack. What is Imbalance in LifePo4 batteries? Battery pack of any electric car is made up of multiple cells. All these cells are supposed to perform together at equal potential for EV to run smoothly. When one or more cells are not at same SOC (State of Charge) as other cells then it is termed as an imbalanced battery pack. This can cause the cells of the battery pack to degrade non-uniformly, causing the rapid reduction of SOH (state of health) of the whole battery pack. Factors affecting battery to get imbalance 1. Fast charging the battery frequently. 2. Not performing 100% charge regularly on a level 2 charger. Normally car manu...

Why MG and BYD cars battery SOH is dropping faster?

Source: BYD We all know that all the BYD cars are equipped with LFP batteries nowadays. These battery chemistry has become quite popular in today's time due to its evident advantages over NMC battery cells. We can see lots of other manufacturer's also using lfp battery chemistry nowadays for their Electric vehicles.  LFP batteries are required to have constantly balanced cells at all times. This will help the battery pack to perform at their optimum levels at all times. For this, companies suggests to charge the car all the way up to 100% on regular basis. Doing this will ensure that the battery of your car is at optimum top balanced level at all times. What is happening with MG and BYD Batteries? As we all know, in case of LFP batteries it is very difficult to judge the actual SOC of the battery unless it is charged upto 100% on dropped below 10%, So BMS calculates the SOC based on columb count method. Now when the battery pack has degraded or is imbalanced, it is likely that ...

Understanding Absorption Time in LFP batteries

Source: Off Grid Garrage Understanding LFP charging is not as simple as other battery chemistries. This is because of their weird behavior during the charging phase. There are several misconceptions floating around about charging behavior of LFP batteries. All of them are not true, while some of them are true but not for the reason they are mentioning, while some reasons are actually true too. Misconceptions 1. Charging 10 to 100% does better cell balancing than 50 to 100%: This concept holds 100% true, if your battery is NMC battery. If its LFP battery then its not true. As per experiments conducted by several people this is not proving to be true. But doing 10% to 100% is actually good for LFP battery but not for cell balancing but for battery longevity. To understand this one guy did experiment on group of lfp cells connected together. these were his findings. If you want all cells to be balanced to 3.4V, then keep the balancing start voltage to 3.4V only. Keeping balancing start vo...