Phoenix TX-3500 Tubular Battery 280Ah Price in Pakistan

The Phoenix TX-3500 is a 12V, 280Ah flooded tall tubular battery from the TX Power Cube series, with 9 plates. Tubular construction lets the TX-3500 handle many deep cycles, which is why it suits solar inverters.

Backup time: a 12V 280Ah battery holds about 3360 watt-hours. Using only half of it (50% depth, which is kind to lead-acid) and allowing 85% inverter efficiency, the TX-3500 gives about 4.8 hours on a 300W load such as fans, lights and a router, and about 2.4 hours on a 600W load such as a fridge with two fans. This is the longest backup in the TX range we list.

Best use: a 3 kVA UPS or a larger solar inverter bank in 24V or 48V, where long backup matters. It suits big homes, clinics, shops and offices that run a fridge, many fans, lights and computers.

Maintenance: a large flooded battery uses more water during heavy charging, so check it every two to three weeks in summer and add distilled water only; see (How to Check Battery Water and Top It Up Safely). Ask about the TX-3500 warranty before ordering, as it is not in our data. Browse the full TX range on (Phoenix Battery prices). Order it from Syed Non Custom Solar.

Before you order: a 280Ah battery is large and heavy, so measure the space, make sure the floor or stand is strong, and plan for two or three people to move it. In a 48V bank of four, it stores more than 13 kilowatt-hours in total, suitable for a large hybrid inverter. With that much storage, a weak charger is the common problem, so confirm your UPS or inverter can push enough charging current to refill it before the next cut. Ask about the warranty card at delivery.

Among its siblings, the TX-3500 is the biggest in our list with 280Ah and 9 plates. It gives 35Ah more than the TX-3000 and 50Ah more than the TX-2500. If your load is small, a smaller TX will cost less and be easier to lift. Versus lithium, a 280Ah tubular gives big storage at a lower start cost but weighs much more and needs water; see (Lithium vs Tubular Battery: Which Is Better for Solar?).

Battery

Brand

Phoenix

Model

TX-3500

Series

TX Power Cube Tall Tubular

Type

Tall tubular, flooded deep cycle

Voltage

12V

Capacity

280Ah

Plates

9 plates per cell

Construction

Tall tubular

Use & fit

Best for

UPS / inverter, Solar

Maintenance

Top up distilled water every 1–2 months

Warranty

Warranty

Brand warranty (ask before ordering)