How many kilometers can 4 12V batteries run?

[StBrynlee]

An electric vehicle with four batteries can typically travel approximately 80 kilometers. The maximum range of an electric vehicle depends on the battery capacity. Regular Charging: Generally, batteries start discharging as soon as they leave the factory. If left unused for one or two months, the battery may fully discharge. Prolonged inactivity can degrade battery performance and reduce range. Therefore, even when not in use, it is advisable to charge the battery every half a month to a month. Fully Charge Before Use: Many owners often forget to charge the battery after use, leading to reliance on fast charging when in urgent need. While a single fast charge may not have a significant impact, frequent use can cause the battery to develop a "memory effect," making it unable to hold a full charge in the future. This affects both the range and the battery's lifespan. Simply put, a fully charged standard battery can travel about 30 kilometers, whereas frequent fast charging may reduce this to just over 10 kilometers. Regular use of fast charging can impair battery performance and shorten its lifespan.

[VonTyler]

Last time I replaced four 12V batteries for my small electric scooter, and it could run nearly 50 kilometers on a full charge. It depends on your battery capacity—mine is 20Ah, which is a common specification. Also, vehicle weight and road conditions have a big impact. For example, with my 70kg weight, riding on flat roads saves much more power than carrying a passenger uphill. In cold winter temperatures, battery efficiency drops, and the range might be reduced by 20%. My personal advice is not to drain the battery completely before charging; it's best to recharge when about 30% is left for optimal battery maintenance. This way, a set of batteries can last over two years. Frequent riders should consider choosing higher-capacity batteries.

[SanCassidy]

The actual range of four 12V batteries is really uncertain—it mainly depends on the ampere-hour (Ah) rating. Take common models on the market as examples: a 20Ah battery assembled on a regular electric scooter can reliably cover about 50 kilometers, while some users have achieved 80 kilometers with a 32Ah high-capacity battery. I’ve noticed many overlook motor efficiency; for instance, new brushless motors save one-third more power than old brushed ones. Charging habits also directly impact lifespan—batteries frequently deep-discharged often suffer a sharp drop in range by the second year. Stop-and-go city riding consumes 15% more power than suburban cruising. Always check the capacity label on the battery side for accurate estimation.

[OHayden]

A 48V system composed of four 12V batteries, with a conventional capacity of 20Ah, can typically support a range of about 50-60 kilometers. When I helped a friend modify an electric tricycle, I found that an additional 100kg of load increases power consumption by 20%. When the temperature drops below 10°C, the activity of the electrolyte decreases, leading to a particularly noticeable reduction in range. Don’t forget to check the tire pressure—underinflated tires can reduce the range by up to 8 kilometers. In a series-connected battery setup, the biggest concern is a single battery failing. It’s recommended to use a multimeter to measure the voltage difference between individual cells every three months; if it exceeds 0.5 volts, caution is needed. Old batteries usually lose about 30% of their range by the second year.

[MiguelLynn]

What vehicles use these four batteries: Two-wheel electric scooters typically have a range of 40-70 km, grocery trikes 30-50 km, and four-wheel senior mobility scooters are more power-hungry, managing only about 30 km. Based on cases I've handled, new 20Ah batteries initially provide around 65 km range, with approximately 10% annual degradation. Controller calibration significantly impacts performance—some modified vehicles deliberately increase RPM, consuming more power. Actually, maintaining a steady 30 km/h is most economical; frequent acceleration/deceleration increases energy consumption by 30%. I recommend installing a voltmeter to monitor voltage—recharge when it drops to 46V.