Stationary Energy Storage Solution

Active Balancing

Passive Balancing

Remote Monitoring

Remote Monitoring

Fast Charging

Fast Charging



Customized Lithium Battery

Stationary ESS

German Engineering

German Engineering

Higher Returns

Higher Returns

Long Battery Life

3 Years Life*

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NMC Chemistry

Energy Efficient

Cost Effective

Zero Maintainence

Green Solutions

Lithium Advantage

Energy Independence

Reduced Carbon Footprint

Customized Energy Storage System



Parameter Lead Acid Battery CelPak-n
Efficiency Low about 60% As high as 95%
Energy Cost High Low
Weight Bulky/ Heavy Weight Lower Weight
Sound Emission Silent Silent
Space Requirements Large Space Very Handy
Life Cycle Lesser Life Cycle 3 Years Life* (1300-1500 cycles*)
Pollution Yes Green
Vested Interest Yes (Lead Theft Possible) No vested interest
Repairs Frequent Replacement Long Life
Operating Temperature 25°C to 35°C -25°C to +50°C    [-13F to 122F]
Charging Time Long Charging Time (Min 8Hrs) Shorter Charging Time (2~3 Hrs)
Operational Cost Yes No
Plug & Play Ability - Yes
Maintenance Yes No



1.Is this really maintenance free?

Yes, CelPak-n is absolutely maintenance free, you don’t have to add any sort of battery water or clean the terminals.

2. What does One Cycle mean?

A charge cycle is the process of charging a rechargeable battery and discharging it as required into a load.

3. Will this battery be safe to install in E-Rickshaws?

Yes CelPak-n is absolutely safe to install in E-Rickshaws and is non-flammable as well as non-explosive.

4. Do I have to use this battery system daily?

No, You can leave the CelPak-n unused to a period up to 60 days safely, the battery condition will not deteriorate.

5. Does it have any protection?

Yes, CelPak-n comes with inbuilt protections like over voltage, under voltage, over current, under currents, fault detection.

6. How can I charge the battery?

CelPak-n can be charged by solar power, wind power, grid, and/or any dc source of the appropriate ratings.

7. Can I get custom sizes as per my requirements?

Yes, custom size are available on special requests, you can write to us on sales[at]vmechatronics[dot]com

8. How much time does it take to charge these batteries to full capacity?

CelPak-n can be fully charged in 2-3 hours depending upon Charger used for charging the battery.

9. Does this emit any fumes or pollutants?

No, CelPak-n does not emit any fumes or pollutants, it is completely eco-friendly.

10. Do I have to add battery water to this every month?

No, You will never have to add battery water to CelPak-n.

11. Can they sustain hot and humid climate of India?

Yes, CelPak-n can sustain Indian weather conditions. It can operate in temperatures from -25°C to +50°C.

12. After how many years should I replace these batteries?

The life expectancy of CelPak-n is 3 years* (1300-1500 cycles), so install CelPak-n and forget replacement headache for the next 3 years*.