How many kilometers can 4 12V batteries run?

[TheoLee]

An electric vehicle with four batteries can typically travel approximately 80 kilometers. The maximum range of an electric vehicle depends on the battery capacity. Below are some usage precautions for electric vehicles: Regular charging: Generally, batteries start discharging once they leave the factory. If unused for one or two months, the battery may be completely drained. Prolonged inactivity can degrade battery performance and reduce range, so even when not in use, it's advisable to charge the battery every half month to a month. Fully charge before use: Many owners often forget to charge after use, leading to reliance on fast charging when in urgent need. While a single fast charge may not have significant impact, frequent fast charging can create adverse memory effects in the battery, making it unable to hold a full charge in the future, thereby affecting range and lifespan. Simply put, a fully charged standard battery can run about 30 kilometers, whereas fast charging may limit the range to just over 10 kilometers. Frequent use of fast charging can impair battery performance and shorten its lifespan.

[SanCassidy]

I often ponder about electric vehicle batteries. Typically, four 12V batteries are combined to create a 48V system. Assuming each battery has a capacity of around 100Ah, the total energy is approximately 4.8 kWh. On average, an electric vehicle consumes about 0.1 to 0.15 kWh per kilometer, which roughly translates to a range of 30 to 50 kilometers. However, don't take this as a fixed number. There are numerous influencing factors: for instance, driving at high speeds increases wind resistance and drains the battery faster, directly reducing the range; in winter, when temperatures drop below zero, the battery's activity decreases, cutting the range by about 20%; over time, with regular use, the battery ages and its capacity diminishes—what might give you 45 kilometers when new could drop to just 30 after two or three years. That's why I always recommend test-driving before buying to see the actual performance, and also to remember not to delay charging until the battery is completely drained.

[LeMason]

I've used a few small electric vehicles, and the version with four 12V batteries usually allows me to drive around 30 kilometers in the city. Once, when I drove on suburban roads with a tailwind and gentle slopes, I managed to go 40 kilometers before needing a charge. However, when carrying heavy loads or going uphill, the battery drains quickly. That time when I took friends and luggage on a mountain road, the low battery warning came on in less than 25 kilometers. Charging habits are also crucial. I'd say it's better not to deep discharge regularly; charging when the battery is half used helps protect it. During the hot summer months, I make sure to park in a ventilated garage to cool the battery and avoid overheating, which can shorten its lifespan. Overall, I find these vehicles quite economical and suitable for short commutes, but for long distances, you need to plan your charging stops carefully.

[DelaneyRose]

I'm concerned about battery maintenance to extend the range. When four 12V batteries are connected in series, capacity is crucial. Under common conditions, a total capacity of 100Ah can provide a range of about 40 kilometers. To maximize the distance my car can travel, I regularly check the battery terminals, clean them to prevent corrosion; avoid overcharging by stopping at 80% capacity; and use the heater sparingly in winter to save power. New batteries perform well, but it's normal for the range to decline over time—replacing them can restore performance.