Yes, lead-acid batteries should ideally be fully charged to maintain their health and performance. When these batteries are not fully charged, it can lead to
sulfation, where lead sulfate crystals build up on the battery plates. This reduces the battery’s capacity and lifespan.
However, it's important to note that
overcharging is also harmful to lead-acid batteries. That's why a good charging system that automatically stops or reduces the charge when the battery is full is essential.
To summarize:
- Fully charge your lead-acid battery for better performance.
- Avoid overcharging it to prevent damage.
- If possible, keep it in a float charge state when it’s not in use for long periods, which keeps the battery topped off without overcharging.