All rechargeable batteries exhibit this behavior, although certain chemistries are less susceptible to it.
Higher temperatures can accelerate self-discharge.
Series: In the context of batteries, a series circuit is when multiple battery cells are connected in a chain, so
each cell’s positive terminal is connected to the next cell’s negative terminal. This increases the
voltage, but not the current capacity.
Thermal runaway: A dangerous feedback cycle that occurs when batteries turn excess energy into heat,
which in turn releases oxygen, which in turn makes more heat. This can result in venting, bulging, fire,
and explosions, depending on the battery chemistry.
Appendix H: Further Reading
H.1 Mobile Solar Power Made Easy! By Will Prowse
This is a great book for beginners and intermediate DIYers. Lots of practical, real-world examples. Available
from Amazon and mobile-solarpower.com