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ESI is an ISO 9001:2015 unit company and a leading battery charger manufacturer in Kolkata

22/09/2026

When BHEL, Tata Steel, Siemens, Reliance and L&T need reliable power solutions — they choose ESI. For over 35 years, we have been the trusted electrical manufacturing partner for India's most demanding industries, delivering precision-built products that perform without compromise.

📩 Join 5000+ satisfied installations — call us today to discuss your requirement.

𝗟𝗲𝗮𝗿𝗻 𝗠𝗼𝗿𝗲: 𝘄𝘄𝘄.𝗲𝘀𝗶𝗲𝗹𝗲𝗰𝘁𝗿𝗼.𝗰𝗼𝗺/
𝗖𝗮𝗹𝗹 𝗨𝘀 𝗙𝗼𝗿 𝗢𝗿𝗱𝗲𝗿: +𝟵𝟭 𝟴𝟵𝟴𝟭𝟬 𝟴𝟵𝟬𝟳𝟳

[trusted electrical manufacturer India, industrial power solutions India, ISO certified manufacturer Kolkata, battery charger manufacturer India, electrical panel manufacturer India]

14/09/2026

May Lord Ganesha remove every obstacle and bless every journey with strength, stability, and the power to progress. Wishing you and your loved ones a joyful and prosperous Ganesh Chaturthi filled with new beginnings, success, and positivity. 🙏✨

🙏 May every new beginning lead to greater progress and success. Happy Ganesh Chaturthi!

(Ganesh Chaturthi wishes, Ganesh Chaturthi 2026, Ganesh festival India, prosperity and success, new beginnings)

10/09/2026

Behind every ESI product is a team of skilled engineers and technicians who take pride in what they build. From assembly to load testing to final inspection — every step is carried out with the same precision that has made ESI the trusted choice of India's biggest industries for over 35 years.

📩 DM us your requirement — our team responds within 24 hours.

[industrial electrical manufacturer India, precision manufacturing Kolkata, ISO certified electrical products, skilled electrical manufacturing India, quality power solutions India]

07/09/2026

A single moment of DC power failure in a substation or switchgear room can trigger a catastrophic chain reaction. ESI's Float cm Boost Battery Charger feeds your critical DC load continuously without any interruption while simultaneously charging the discharged battery — keeping your backup system always ready, always protected.

📩 DM us your DC load and battery specs — we'll engineer the right FCBC for you.

[float cm boost charger manufacturer India, FCBC battery charger industrial, substation DC backup system, standby battery charger India, switchgear battery charger Kolkata]

27/08/2026

India's most critical industries don't run on luck — they run on precision-built electrical systems, tested to the highest standards. At ESI, every product is hand-assembled, load-tested and inspected before it leaves our Kolkata facility. 35 years of trust. Pan-India installed.

📩 DM us your requirement and our team will respond within 24 hours.

𝗟𝗲𝗮𝗿𝗻 𝗠𝗼𝗿𝗲: 𝘄𝘄𝘄.𝗲𝘀𝗶𝗲𝗹𝗲𝗰𝘁𝗿𝗼.𝗰𝗼𝗺/
𝗖𝗮𝗹𝗹 𝗨𝘀 𝗙𝗼𝗿 𝗢𝗿𝗱𝗲𝗿: +𝟵𝟭 𝟴𝟵𝟴𝟭𝟬 𝟴𝟵𝟬𝟳𝟳

[industrial electrical manufacturer India, battery charger manufacturer Kolkata, precision power solutions India, ISO certified electrical manufacturer, industrial panel manufacturer India]

21/08/2026

What happens when a critical industrial load suddenly loses its power supply? ⚡

A few seconds of interruption can mean downtime, equipment risks, and costly operational losses. But how does a Float Cum Boost Battery Charger keep critical DC loads running and batteries ready for the next disruption?

Our latest blog breaks down how Float Cum Boost chargers work, how they protect battery life, what happens during mains failure, and the essential maintenance checks you shouldn’t ignore.

👉 Read the full blog to understand the technology behind uninterrupted industrial power.

🔗 Read the complete blog and discover how the right charging system can protect your critical loads.

https://www.esielectro.com/blog/float-cum-boost-battery-chargers-protect-industrial-loads

(float cm boost battery charger India, industrial battery charger, critical DC power system, battery charger for industrial plants, uninterrupted DC power)

15/08/2026

This Independence Day, we celebrate the spirit of a nation built on resilience, innovation, and progress. At Electro Service India, we're proud to contribute to India's industrial growth by delivering reliable power solutions that keep industries moving forward. 🇮🇳

🇮🇳 Join us in celebrating the power of a stronger, self-reliant India.

𝗟𝗲𝗮𝗿𝗻 𝗠𝗼𝗿𝗲: 𝘄𝘄𝘄.𝗲𝘀𝗶𝗲𝗹𝗲𝗰𝘁𝗿𝗼.𝗰𝗼𝗺/
𝗖𝗮𝗹𝗹 𝗨𝘀 𝗙𝗼𝗿 𝗢𝗿𝗱𝗲𝗿: +𝟵𝟭 𝟴𝟵𝟴𝟭𝟬 𝟴𝟵𝟬𝟳𝟳

(Independence Day India, Make in India, industrial power solutions, Indian engineering, reliable electrical solutions)

10/08/2026

Poorly designed distribution panels are one of the biggest causes of plant downtime and electrical hazards. ESI's AC and DC Distribution Boards are custom-built with genuine components, in-house microcontroller-based fault-sensing PCBs and IP55/65 protection trusted by IOCL, AEGCL, and leading switchgear companies across India.

📩 Call us today to discuss your panel requirement and get a custom quote.

𝗟𝗲𝗮𝗿𝗻 𝗠𝗼𝗿𝗲: 𝘄𝘄𝘄.𝗲𝘀𝗶𝗲𝗹𝗲𝗰𝘁𝗿𝗼.𝗰𝗼𝗺/
𝗖𝗮𝗹𝗹 𝗨𝘀 𝗙𝗼𝗿 𝗢𝗿𝗱𝗲𝗿: +𝟵𝟭 𝟴𝟵𝟴𝟭𝟬 𝟴𝟵𝟬𝟳𝟳

[ACDB DCDB manufacturer India, AC distribution board industrial, DC panel manufacturer Kolkata, power distribution board India, electrical panel manufacturer]

06/08/2026

Poor charging quality silently destroys industrial batteries, increasing replacement costs and causing unexpected downtime. ESI's SMPS Battery Chargers use high-frequency switching and PWM regulation to deliver smooth, ripple-free DC output, extending battery life and maximising uptime for your critical operations.

📩 Call or DM us to get the right SMPS charger spec for your application.

𝗟𝗲𝗮𝗿𝗻 𝗠𝗼𝗿𝗲: 𝘄𝘄𝘄.𝗲𝘀𝗶𝗲𝗹𝗲𝗰𝘁𝗿𝗼.𝗰𝗼𝗺/
𝗖𝗮𝗹𝗹 𝗨𝘀 𝗙𝗼𝗿 𝗢𝗿𝗱𝗲𝗿: +𝟵𝟭 𝟴𝟵𝟴𝟭𝟬 𝟴𝟵𝟬𝟳𝟳

[SMPS battery charger manufacturer India, PWM battery charger industrial, ripple-free charger India, high-frequency battery charger, SMPS charger Kolkata]

31/07/2026

Choosing the right EV battery charger is about more than just plugging in. From charging speed and compatibility to operating range and installation, the right choice can improve performance, safety, and battery life. Read our latest blog to discover the key factors to consider before buying an EV battery charger.

🔗 Read the full blog and make an informed charging decision.
https://www.esielectro.com/blog/4-crucial-pointers-to-know-for-buying-an-ev-battery-charger

(EV battery charger India, electric vehicle charger, EV charging solutions, battery charger guide, EV charger manufacturer)

Address

Electro Service India, Behala Industrial Estate, Building No. 2, 2nd Floor
Kolkata
700034

Website

http://www.electroserviceindia.com/

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