| Product | Voltage | Capacity | Chemistry | Application | Est. Price |
|---|---|---|---|---|---|
| Amaron LFP 48V-100 | 48V | 100 Ah (4.8 kWh) | LFP | Small BTS, rural tower | ₹25,000–35,000 |
| Amaron LFP 48V-150 | 48V | 150 Ah (7.2 kWh) | LFP | Standard BTS site | ₹38,000–52,000 |
| Amaron LFP 48V-200 | 48V | 200 Ah (9.6 kWh) | LFP | High-load / 5G tower | ₹50,000–70,000 |
| Amaron LFP 51.2V-200 | 51.2V | 200 Ah (10.24 kWh) | LFP | Premium / grid-tied hybrid | ₹55,000–80,000 |
| Product | Voltage | Capacity | Chemistry | Application | Est. Price |
|---|---|---|---|---|---|
| Waaree LFP 48V-50 | 48V | 50 Ah (2.4 kWh) | LFP | Small site / edge node | ₹15,000–22,000 |
| Waaree LFP 48V-100 | 48V | 100 Ah (4.8 kWh) | LFP | Standard BTS | ₹28,000–40,000 |
| Waaree LFP 48V-200 | 48V | 200 Ah (9.6 kWh) | LFP | High capacity / 5G | ₹55,000–78,000 |
| Brand / Product | Voltage | Capacity | Chemistry | Est. Price | Warranty |
|---|---|---|---|---|---|
| Exide LFP Telecom 48V-100 | 48V | 100 Ah | LFP | ₹28,000–42,000 | 5 yrs |
| Exide LFP Telecom 48V-200 | 48V | 200 Ah | LFP | ₹55,000–80,000 | 5 yrs |
| MP Narada 48V-100 LFP | 48V | 100 Ah | LFP | ₹25,000–38,000 | 5 yrs |
| MP Narada 51.2V-200 LFP | 51.2V | 200 Ah | LFP | ₹52,000–75,000 | 5 yrs |
| System Size | Voltage | Chemistry | Application | Est. Price | VRLA Equivalent |
|---|---|---|---|---|---|
| 5 kWh Li cabinet | 48V / 240V | LFP | Small office UPS (10–20 kVA) | ₹3–5L | Replaces 4–6 VRLA strings |
| 10 kWh Li cabinet | 480V HV | LFP | Mid UPS (40–80 kVA) | ₹5–8L | Replaces 8–12 VRLA strings |
| 20 kWh Li cabinet | 480V HV | LFP | Large UPS (100–200 kVA) | ₹8–15L | Replaces 16–24 VRLA strings |
| 50 kWh Li system | 480V HV | LFP | Data centre (200–500 kVA) | ₹20–40L | Replaces large VRLA bank |
| VRLA 12V 100Ah (reference) | 12V | VRLA | Legacy UPS (per unit) | ₹8,000–15,000 | — (baseline) |
| Factor | VRLA (Lead-Acid) | Lithium LFP | Winner |
|---|---|---|---|
| Upfront cost (per kWh) | ₹5,000–8,000 | ₹18,000–25,000 | VRLA |
| Lifespan (telecom site) | 3–5 years | 8–15 years | Lithium |
| Cycle life | 300–500 cycles | 3,000–6,000 cycles | Lithium |
| Maintenance | Quarterly inspection, terminal cleaning, electrolyte checks | Zero maintenance (sealed BMS) | Lithium |
| Weight (same capacity) | 3–4× heavier | 50–60% lighter | Lithium |
| High temp performance | Degrades rapidly above 40°C | Handles 55°C ambient well (LFP) | Lithium |
| Deep discharge recovery | Damaged by deep discharge | Recovers from 100% DoD | Lithium |
| 10-year total cost | 2–3 replacements = ₹15K–25K/kWh | 1 installation = ₹18K–25K/kWh | Lithium (tie or better) |
| Environmentally hazardous | Yes — lead recycling needed | Minimal — no lead | Lithium |
Sizing a telecom tower battery bank
A standard Indian BTS site draws 1.5–2.5 kW. For 4-hour backup at 2 kW: need 8 kWh usable. With 80% DoD lithium: 3 × 48V 100Ah (= 14.4 kWh) provides comfortable coverage. For 5G macro towers (3–5 kW), use 6 × 48V 200Ah strings.
India heat is VRLA's biggest enemy
VRLA battery life halves for every 10°C above 25°C — meaning a 5-year VRLA at 25°C lasts just 1.25 years at 45°C (common inside Indian tower cabinets). LFP operates safely to 60°C. The Indian climate strongly favours lithium for outdoor telecom installations.
UPS lithium ROI calculation
A ₹10L lithium UPS cabinet (20 kWh) vs ₹3L VRLA every 4 years = ₹7.5L over 12 years for VRLA (3 replacements). Lithium: ₹10L once + zero maintenance. Plus: lithium charges faster (less generator runtime), saving ₹40,000–80,000/year in diesel. ROI: 3–5 years.
Compatibility with existing UPS
Modern online UPS systems (APC, Eaton, Vertiv, Schneider) support lithium battery cabinets with CAN/RS485 BMS communication. Older UPS models may need a firmware update or battery gateway module. Always verify compatibility with your UPS vendor before purchasing lithium cabinets.
Certifications to demand
For telecom applications: IEC 62619 (safety for stationary Li-ion), UN 38.3 (transport safety), BIS IS:16046, and UL 1973 (for premium suppliers). For UPS/data centre: IEC 62619 + UL 9540 (system level). Do not accept uncertified batteries for mission-critical infrastructure — fire risk is real.
Plan your VRLA replacement in phases
Don't replace all VRLA at once — it's capital-intensive. Phase it: replace highest-failure-risk sites first (oldest VRLA, hottest climates, most remote). Use VRLA replacement cycles as the trigger. Tower companies like Indus Towers and ATC India are running 5-year lithium retrofit programmes across their portfolios.
What is the price of a 48V lithium battery for telecom towers in India?
A 48V 100Ah LFP lithium battery for telecom towers costs approximately ₹25,000–45,000 per unit. For a complete tower battery bank (3–4 units), total cost is ₹75,000–1,80,000. Amara Raja, Waaree Tech, Exide, and MP Narada are the leading Indian suppliers.
Is lithium better than VRLA for telecom towers in India?
Yes — decisively for Indian conditions. Lithium LFP lasts 8–15 years vs 3–5 for VRLA, handles 45°C+ temperatures without accelerated degradation, requires zero maintenance, and weighs 50–60% less. Amara Raja has already deployed 1 GWh across 50,000+ Indian telecom sites, validating the transition.
How many batteries does a telecom tower need in India?
A typical Indian BTS site needs 3–4 strings of 48V 100Ah–200Ah batteries for 4–8 hours of backup. For 5G towers with higher power draw, 6–8 strings of 48V 200Ah are common. The exact configuration depends on load (1.5–3 kW) and grid reliability at the site.
What is the price of a UPS lithium battery for data centres in India?
UPS lithium battery cabinets for data centres cost ₹3–15 lakh per cabinet (5–50 kWh). A full data centre UPS battery replacement typically costs ₹15–50 lakh for a small-to-mid-size facility. Lithium cabinets last 3× longer than VRLA, making per-year cost comparable.
Which companies supply lithium batteries for Indian telecom towers?
Key suppliers: Amara Raja Energy (1 GWh deployed, 50,000+ sites), Waaree Technologies, Exide Industries, MP Narada, and international suppliers through system integrators. Reliance Jio and Airtel are major buyers driving India's lithium telecom transition.
What is the ROI on replacing VRLA with lithium in telecom towers?
Typically 3–5 years ROI. Key savings: zero maintenance (₹8,000–15,000/site/year), fewer replacements, reduced diesel generator runtime, and lower structural load. Tower companies IndiGrid, Indus Towers, and ATC India are all running active VRLA-to-lithium conversion programmes.