Batteries · LED lighting · Made in Nepal

When the
power goes,
your lights
stay on.

I-VOLT makes tubular batteries for inverters, solar, vehicles and e-rickshaws, and LED bulbs, tube lights and street lights. Made in Hetauda, Nepal.

02Backup calculator

How big a battery do you need?

Pick what you want running in a power cut, and for how long. We will suggest an I-VOLT battery and the inverter to pair with it.

What stays on

4 hrs

What that adds up to

    Suggested I-VOLT battery

    0Ah

    Solar Tubular 12VSee price and stock on ultraestore
    -Running load
    -Inverter, at least
    -System voltage
    How we worked this out

    Battery size = load in watts × hours ÷ (system voltage × 0.85 for inverter losses × 0.8, so the battery is never drained flat). Inverter = load ÷ 0.8, plus 15% headroom, rounded up to a common size, and at least 900VA when a fridge is on the list, because a compressor draws several times its running power for a moment when it starts. Water pumps need more; ask us.

    A starting point, not a quote. Show it at any ULTRA showroom and our team will confirm it.

    03Why tubular

    Built to be drained and refilled, every day.

    Long power cuts and solar systems drain a battery deep, then charge it again. That cycling is what wears batteries out. Tubular plates are made for it.

    1. 01
      Material held in tubesIn a flat-plate battery the active material is pasted onto a grid and sheds a little with every deep discharge. In a tubular battery it is packed into porous tubes around lead spines, so it stays in place.
    2. 02
      More cycles before it fadesLess shedding means more charge and discharge cycles before capacity drops. That is what long outages and daily solar charging need.
    3. 03
      Low maintenanceI-VOLT tubular batteries need little looking after. On models with top-up caps, add distilled water up to the MAX line now and then.
    Flat plate Paste sheds with each deep discharge Tubular plate Material held in tubes around lead spines
    Simplified cross-sections, not to scale.

    04Made in Nepal

    Built in Hetauda, for Nepal’s power cuts.

    I-VOLT batteries are made at ULTRA GROUP NEPAL’s plant in Hetauda, Makwanpur. ULTRA’s own technicians install and service them.

    Manufacturer
    Green Gold International (P) Ltd
    Plant
    Hetauda, Makwanpur, Nepal
    Part of
    ULTRA GROUP NEPAL, since 1997
    Sold through
    ultraestore.com, ULTRA showrooms and 100+ partner outlets
    HetaudaI-VOLT plant KathmanduHead office and showroom

    05Where to buy

    Buy I-VOLT anywhere in Nepal.

    Order online, visit an ULTRA showroom, or ask us for the partner outlet nearest you. There are more than 100, across all seven provinces.

    ultraestore.com

    The full I-VOLT range with current prices. Pay cash on delivery.

    Shop I-VOLT online

    ULTRA showrooms

    100+ partner outlets

    In all seven provinces. Message us your district and we will point you to the nearest one.

    WhatsApp +977 980-1006292

    Export

    Buying from outside Nepal?

    Tell us which batteries or lights you need, the quantities and the destination. Our team will reply with availability and terms.

    Email ggi@ultragroup.com.np Or call +977-1-4313398