Inverter Battery Buying Guide: 150Ah vs 200Ah, Tubular Types & Warranty
150Ah or 200Ah? Jumbo or tall tubular? A model-by-model comparison from the real Microtek Dura range.
The inverter gets the attention, but the battery is what actually keeps your lights on — and it's usually the bigger long-term cost. Choosing the right capacity and type saves money and frustration over the battery's life. Here's how to choose, using the actual Microtek Dura range we stock.
What the Ah rating means
Amp-hours (Ah) measure how much charge a battery stores. Higher Ah means longer backup for the same load. A 150Ah battery is the standard home choice; 160Ah, 180Ah and 200Ah give progressively more runtime for larger homes or heavier loads.
Pick your battery by home and outage length
| Capacity | Best for | Example model | Warranty |
|---|---|---|---|
| 150Ah | Most 1–2 BHK homes, short to moderate cuts | Dura Long M1502424JT (Jumbo Tubular) | 48 months |
| 160Ah | 2 BHK with longer cuts | Dura Strong M1603624TT (Tall Tubular) | 60 months |
| 180Ah | 2–3 BHK homes | Dura Strong M1803624TT (Tall Tubular) | 60 months |
| 200Ah | 3 BHK, heavy loads or long outages | Dura Strong M2003624TT (Tall Tubular) | 60 months |
Microtek Dura inverter battery range
Jumbo tubular vs tall tubular
Both are tubular designs that handle the deep, repeated discharges common in Indian homes far better than flat-plate batteries. The Dura Long jumbo tubular is a strong-value 150Ah option with a 48-month warranty; the Dura Strong tall tubular range carries a longer 60-month warranty and suits areas with frequent, long power cuts. Both use Microtek's ADC technology for better charge acceptance and life.
How long a battery lasts — and how to extend it
A quality tubular battery typically lasts around 4–5 years. Simple care goes a long way:
- Top up with distilled water periodically — never tap water.
- Keep the battery ventilated and off damp floors (a trolley helps).
- Avoid running it fully flat repeatedly; deep over-discharge shortens life.
- Keep terminals clean and tight to prevent corrosion and voltage drop.
Where lithium fits in
Lithium (LiFePO4) inverter batteries are the modern upgrade: maintenance-free, much lighter, fast-charging, and rated for over 3,500 cycles with a 5-year warranty. They cost more upfront, but the longer life and zero maintenance can make them better value over time — provided your inverter supports a lithium charging profile.
Old battery exchange
When you upgrade, we offer old-battery exchange and buyback against your new one, deliver and install it at home across Delhi NCR, and dispose of the old battery responsibly.
Where to next
Frequently Asked Questions
Can I mix an old battery with a new one?
It's not recommended. A weaker, older battery drags down the performance and life of a new one in the same bank. Replace batteries as a matched set for best results.
Do I need to add water to my inverter battery?
Conventional tubular batteries need periodic top-up with distilled water; lithium batteries do not. Check the level every couple of months on tubular models.
Is a 150Ah battery enough for a refrigerator?
It can run a fridge for a limited time alongside lights and fans, but for comfortable backup with a refrigerator most homes prefer 200Ah (such as the Dura Strong M2003624TT) with an adequately rated inverter.
Need help choosing?
Share your requirement and our team will recommend the right product and size for your home or business. Genuine stock, home installation, old-battery exchange, and on-site service & AMC across Delhi NCR — in business since 1998.