MTTP VS PMW: Why MTTP is Better for Server Rack Battery?

If you don’t own a server rack battery, get ready to face a catastrophe in case of a power outage. An uninterrupted power supply is a must for running your business smoothly. Besides businesses, residential setups require a backup system too.

Any downtime can cause a significant breakdown in terms of productivity, reputation, and revenue. Since many errands are power-dependent, a proper backup system is always required as outages can happen anytime, and that’s pretty dramatic.   

A server rack battery is one of the authentic solutions to avoid such situations. Such a power backup system typically includes a battery and power management system. The power management systems are of two types, MTTP and PMW.

If you are looking for a backup system, you are in the right place! This article comprehensively guides you on both the management system. So, keep reading to learn which management system is the most suitable for you: MTTP or PMW?

Power Up Your Servers: An Introduction to Server Rack Battery

Before we conclude which management system to opt for, MTTP or PMW, we must understand a server rack battery.

A server rack battery is a backup power source designed for uninterrupted power supply to servers and other network equipment in case of power outages. Installed in a server rack, it works by storing energy in rechargeable batteries. The batteries discharge when needed.

By using a server rack battery and management system, the staff or IT sector can avail a handful of time span to gracefully shut down systems or switch to alternative power sources.

Server rack batteries are essential components of crucial fields like data centers, network operations, and others. This system ensures critical systems remain operational during unforeseen conditions.   

As we are done with the basic introduction, it's time to explore both the options that we’ve been talking about since the start.

Key Traits of a Reliable Server Rack Battery

Following are the traits of a great server rack battery, which along with the management system, makes an excellent backup.

  • High reliability
  • Long lifespan
  • Rapid charging times
  • Sufficient capacity to power critical equipment for a good amount of time during a power outage
  • Handles frequent charging and discharging cycles
  • Ease of installation
  • Compatible with the existing infrastructure and software
  • Withstands environmental conditions like humidity, temperature fluctuations, and vibrations

Wondering where can you find a battery so good? Navigate to the next heading, where we’ve revealed a handy option fitting the abovementioned criterion.

What is MTTP? A Quick Understanding

MTTP is an acronym for “Maximum Power Point Tracking.” It is a power management technique used to maximize the output of a solar panel or battery. One of the best batteries that have excellently collaborated with MTTP so far is the 51.2V 100AH Server Rack Lithium LIFEPO4 by Aolithium .

Since the battery is something not- to-be-missed, we must highlight a few of its world-class features and benefits.

  • Built-in Intelligent BMS, programmable
  • UL Listed Class A Battery
  • 4000+ Cycles
  • Compatible with a number of inverters
  • 5120WH Energy
  • Real-time Battery Data Monitoring

Getting back to MTTP, this management system works by optimizing the voltage and current output of the 51.2V 100AH Server Rack Lithium LIFEPO4 to match the load and maximize the power of the amount delivered.     

What is PMW? A Brief Insight

PMW is the acronym for Pulse Width Modulation. It is a power management technique used in many pieces of equipment such as inverters, DC-DC converters, and battery chargers and applications like motor control and power electronics. It operates by controlling the duty cycle of a pulse signal and regulates the output voltage or current.

How Do They Work? MTTP VS PMW

MTTP and PMW are completely different technologies. PMW is a commonly used technique that is used to control the power output of a DC source like solar panels or batteries and by adjusting the duty cycle of a pulse train.

PMW changes the width of the pulses, which varies the average voltage or current. However, it is a simple and cost-effective technique compared to MTTP.

MTTP, on the other hand, is much more efficient in extracting the maximum power from an energy source. More advanced, MTTP is operated by continuously adjusting the load impedance of the source to reach the Maximum Power Point.

Use of MTTP in Solar Power Systems

Since Solar Power Systems have taken over drastically, we will particularly discuss the role of MTTP as a solar charge controller.

These are the preferred solar charge controllers. MTTP ensures that the solar panels are operating at their maximum power output. This technology overall contributes to the increased life of the battery and system output and reduces energy costs.

Use of PMW in Solar Power Systems

PMW is also used as a solar charge controller. It regulates the amount of power flowing from the solar panels to the batteries.

Though it works efficiently, it has been found to be less productive compared to MTTP.

MTTP vs PMW as Solar Charge Controller

Solar power systems are all the rage these days. They are cheap, efficient, and extremely productive, and these advantages have grabbed them a fair share of the market. Before we discuss and compare the two technologies, MTTP and PMW generally, we must highlight their role in the most demanding Solar Power System.

  • Both MPPT vs PW work as solar charge controllers in the solar power system
  • Depending on the Battery’s charge level, both adjust charging rates

The table below compares both technologies as solar charge controllers.





System Size

Suitable for big systems

Appropriate for smaller setups

Array Voltage

It’s better if the PV array voltage is higher than the battery voltage

Battery voltage and PV array should match

Battery Voltage

Operates above batter’s voltage. This is particularly helpful to provide a BOOST to the battery in cold temperatures and when the battery is low.

Operates at battery voltage so that it may perform well in warm conditions and when the battery is full

Off-Grid or Grid-Tie

Encourages the use of grid-te PV modules

Must use off-grid PV modules

Array Sizing Method

PV array sizing is done in Watts

PV array zing is done in Amps


What Makes MTTP a Better Option than PMW for a Server Rack Battery Backup?

MTTP combines with an Aolithium 51.2V 100AH Server Rack Lithium LIFEPO4 battery to make an efficient server rack system. But what makes it better than PMW is what we are about to discuss in detail below. Following are the main advantages that MTTP offers you over PMW.

Higher Efficiency

Higher efficiency is one of the main advantages that MTTP has over PMW.  MTTP systems are capable of delivering up to 98% efficiency. In other words, almost all the power generated by the battery is delivered to the load.

PWM, on the contrary, can deliver only 95% of the power generated by the battery. It also means that some of the power is lost in the conversion process.

Faster Charging

Faster charging is another advantage that declares MTTP more valuable than PMW.  MTTP delivers higher charging currents to the battery. Or it’s better to say that the battery can be charged more quickly.

Faster charging is of great importance in server rack applications, where downtime can cost you a lot.  

Better Battery Life

MTTP systems are great for better battery life. This happens because MTTP systems can better regulate the charging of the battery. In other words, it’s safer to say that MTTP does not undercharge or overcharge the battery.

This also helps extend battery life and reduce the risk of battery damage.

High Power Density

MTTP systems are great! They are preferred over PWM for bearing high power density. These systems deliver more power from a small battery.  High power density is particularly important in server rack applications where space is limited, batteries are compact, and higher power is required.


Though MTTP systems are a bit costly, they are worth it. The higher cost, however, is because of the complex and more advanced technology than PWM systems. Since MTTP offers you so much, the cost is a negligible factor, and the benefits justify the investment in the longer run.

A Comprehensive Comparison of MTTP and PMW





Up to 98%

Up to 95%

Charging Speed



Battery Life



Power Density








Why is MTTP  better than PMW?

Efficiency! Efficiency is the main advantage that MTTP offers us over PMW.

IS MTTP better in performance than PMW?

MTTP performs much better than PMW, especially if it is kept in cool conditions; it is more productive than PMW.

Is MTTP more costly than PMW?  

Yes! MTTP is a bit more costly than PMW. However, it delivers more value which justifies the investment.

Final Thoughts

So, it is concluded that MTTP is a better power management system than PWM for server rack batteries. MTTP offers high efficiency, faster charging, better battery life, and high power density. These benefits are useful when MTTP is particularly used in solar power systems.

These advantages make MTTP a preferred choice and compatible with server rack batteries. Though MTTP is expensive, it’s worth it.

Therefore, it is essential to consider the specific requirements of the server rack application before selecting a power management system, especially a solar power system. It ensures the best possible performance and reliability.

If you need a server rack battery, look at the Aolithium 51.2V server rack lithium iron phosphate battery.
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