How many kilometers can a 7232 lead-acid battery run?
3 Answers
7232 refers to a battery pack with 72 volts and 32 ampere-hours, which can generally run for 50-80 kilometers. Calculation formula: Average current at constant speed = Power/Voltage, where power is the motor power. Below is more information about lead-acid batteries: Introduction: A lead-acid battery (VRLA) is a type of battery where the electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. In the discharged state, the positive electrode mainly consists of lead dioxide, and the negative electrode mainly consists of lead; in the charged state, the main component of both electrodes is lead sulfate. Standard voltage: The nominal voltage of a single lead-acid battery cell is 2.0V, which can discharge to 1.5V and charge to 2.4V; in applications, six single lead-acid battery cells are often connected in series to form a nominal 12V lead-acid battery, with other configurations such as 24V, 36V, and 48V.
I've been using a 7232 lead-acid battery for my e-bike for many years, and the actual range can vary quite a bit. With a standard 72V32Ah battery, on flat roads, not driving too fast, and carrying only myself, it can easily cover around 40 kilometers, but don't expect this every day. When I tried carrying a friend up a gentle slope or driving at high speed for a few kilometers, the range immediately dropped to below 30 kilometers. Battery aging is also a major issue—after half a year of use, it noticeably loses power, probably only providing about 35 kilometers, requiring frequent charging and maintenance. To cope, I've learned to monitor speed and load, minimize sudden acceleration, and regularly check the battery water to reduce corrosion risks. Overall, for daily commutes of 20-30 kilometers, it's quite reliable, but for long distances, I need to recharge midway.
From a technical perspective, the range of a 72V32Ah lead-acid battery primarily depends on two figures: voltage and capacity. With a theoretical energy of 2304 watt-hours, it can typically sustain around 40 kilometers under standard e-bike efficiency, but this is just the baseline. Adding 10kg of vehicle weight may reduce the range by 5km; uphill climbs consume significantly more power, often halving the range on steep slopes. Temperature impact is substantial - at freezing point, range can plummet to 25km, while performance improves slightly in high temperatures. Having disassembled such batteries, I've observed that electrode degradation reduces effective capacity, so avoid complete discharges. For daily use, maintaining about 35km range is achievable by avoiding extreme conditions.
