Maintenance-free batteries as outdoor power source

What makes a maintenance-free battery a good choice?

Maintenance-free batteries are a good choice due to their use of a calcium alloy of lead instead of an antimony alloy, which allows them to sustain the water longer without refilling compared to traditional batteries. However, they are not maintenance-free forever, and any abnormal electrical system condition or high ambient temperatures may cause more water to evaporate than normal.

What is a maintenance-free battery?

But when it comes to industrial stationary battery systems, like those used in data centers, utilities, oil & gas, and manufacturing, the “maintenance-free” label doesn’t tell the full story. In these environments, what’s commonly called a “maintenance-free battery” is actually a Valve Regulated Lead Acid (VRLA) battery.

Can Japan create a battery system for a century?

Japan has embarked on a mission to create a battery system that can continuously generate electricity for a century under the extreme conditions of outer space. Long-operational, maintenance-free batteries are expected to play a crucial role in not only lunar projects but also for deep space exploration beyond Jupiter, where sunlight is weaker.

Can a solar battery be used on the Moon?

The power source will rely on different mechanisms from those of solar cells or other batteries used under normal conditions on Earth. For use on the moon, the envisioned battery must be able to cope with temperature fluctuations ranging from 110 degrees during the day to minus 170 degrees at night.