/ RESERVE POWER · HDP — HIGH DENSITY POWER
2V HDP battery — the 20-year line for stations that cannot fail
HDP — High Density Power — is the premium stationary line Microtex has built since 2007 for India’s most demanding standby duty: nuclear facilities, thermal and hydro power stations, oil and gas installations. 2V cells from 100 Ah to 3000 Ah in transparent SAN containers, calcium-tin tubular plates, 20-year design life — a heritage of European electrochemical engineering, built in Bengaluru.
2V · 100–3000 Ah · transparent SAN — 20-year design life — In Indian nuclear service since 2008 — Calcium-tin tubular plates
Why mission-critical tenders specify this construction
Transparent SAN containers, because mission-critical rooms inspect their batteries visually — plates, sediment space and electrolyte level in plain sight. Calcium-tin tubular positives, marrying tubular longevity with calcium metallurgy’s low water consumption — topping-up typically once in 12–15 months. A patent-applied terminal design whose moving pole bushing absorbs up to 12 mm of normal positive-plate growth while keeping a complete seal against acid and gas — the failure that cracks lesser covers, engineered out.
The Plante question: legacy specifications still name Plante cells — a design tubular technology overtook decades ago. HDP delivers the duty Plante tenders intend — verifiable condition, long float life, high-rate confidence — with a smaller footprint, no shedding surface plates, and honest economics. Where your specification permits “tubular equivalent”, this is that equivalent; where it doesn’t yet, our compliance statement shows the arithmetic.
FIG. 1 — 2V HDP CELLS · TRANSPARENT SAN · 100–3000 Ah
Evidence, not adjectives
| Nuclear service | Supplying Indian nuclear facilities since 2008 — maiden 250 V · 1200 Ah bank to BARC (2009), in excellent service for over a decade |
| Oil & gas | 48 V · 800 Ah bank to Indian Oil Corporation (2011); further 220–250 V utility banks (2012, 2014) |
| Approvals | Approved vendor: NPCIL · BARC · Indian oil companies; supplied to National Hydro Power Corporation and power stations across India |
| Key settings | SG 1.240 · float 2.23 V/cell · boost 2.35–2.40 V/cell · float current ~15 mA/100 Ah · 80% DoD capable · −20 to 55 °C |
Questions mission-critical buyers ask us
What does HDP stand for, and how does it differ from OPzS?
High Density Power. OPzS follows DIN cell sizes for internationally specified tenders; HDP is our high-performance stationary line in transparent SAN, engineered for Indian mission-critical specifications and Plante-replacement duty. Same tubular heart, different specification worlds — we quote the one your tender speaks.
Can you meet nuclear and utility qualification requirements?
This line was built for them: approved-vendor registrations with NPCIL and BARC, documentation packs for tender rules, witnessed FAT, and a supply record in nuclear service since 2008. State the facility class in your enquiry; the compliance position comes back in writing.
Why transparent containers?
Because inspection beats assumption. In stations where failure is unacceptable, engineers want to SEE plate condition, sediment and electrolyte level on a walk-round — SAN transparency makes the battery’s honesty visible.
Our specification still says Plante — will you bid?
Yes, with engineering candour: where the tender admits tubular equivalents we bid HDP with the comparison shown; where it strictly requires Plante we will say so rather than force a fit. Either way you get a straight answer before bid day.