Daily inverter backup
A dependable choice where routine cuts mean the bank is genuinely cycled.
Tubular · Tall tubular, flooded
Tubular batteries — the workhorse for regular, longer backup.
Tall tubular batteries are flooded lead-acid units built for deeper discharge and regular inverter duty. Their plate construction and electrolyte reserve make them a practical choice where backup is used often and runtime matters.
They do require distilled-water top-ups, sensible ventilation, and correct charging. Give them that care and they generally offer the longest working life of the common lead-acid choices.
Get a quick quote →Where Tubular fits
Real setups we fit it in.
Longer runtimes
Higher-capacity strings for offices, shops, and operational loads.
DG bridging
Covers routine outages before a generator needs to run.
Solar-ready hybrid systems
A considered fit for lower-cycle, properly maintained storage.
The genuine sub-variants
For tubular, the real choices are capacity, duty cycle, and installation quality.
Beyond this, the practical differences come down to rating, brand, and your installation — which we cover in the quote, not in more pages.
C20 rating
Longer-discharge referenceThe more useful way to compare batteries intended to deliver energy steadily over a longer backup period.
C10 rating
Shorter-discharge referenceUseful where the duty is more concentrated. We match the rating to the way your load actually draws power.
Capacity → backup
Roughly how long a bank lasts.
Indicative figures from standard capacity math, sense-checked against what we actually see in the field. Real backup depends on battery age, temperature, and how deep you draw — treat these as a starting point, not a promise.
BankLoad ~400WLoad ~800WLoad ~1500W
12V / 100Ah~1.8 hr~0.9 hr~0.45 hr
12V / 150Ah~2.7 hr~1.35 hr~0.7 hr
24V / 150Ah~5.4 hr~2.7 hr~1.4 hr
48V / 150Ah~10.8 hr~5.4 hr~2.8 hr
Lifespan expectations
Cared for with correct charging, ventilation, and distilled-water top-ups, tubular banks generally sit at the longer-lived end of lead-acid backup. Actual life depends on heat, discharge depth, and use.
What kills a bank early
Heat and poor ventilation.
Deep discharge beyond the battery’s intended duty.
A charger set to the wrong voltage.
Undersizing the bank for the load.
How to make a bank last ›Quick quote & buy-back
Tell us your setup. Same-day callback.
We supply leading brands. No prices published — every bank is sized to its job, so we quote individually and fairly.