An advantage of NiCad compared to Lead Acid is

• A. A faster recharge cycle
• B. Lower cost
• C. Higher energy density
• D. Longer life

Answer: (A)

The main idea here is how different battery chemistries handle charging. Nickel‑cadmium cells can accept higher charging currents and be recharged more quickly than lead‑acid batteries, provided the charger is designed to prevent overcharge and overheating. This means you can bring a NiCad battery back to usable capacity in a shorter time, which is particularly valuable when you need equipment back in service fast.

Lead‑acid batteries require a more conservative charging approach to avoid gas buildup and overheating, which lengthens the time needed to recharge. So the quicker recharge capability is the standout advantage of NiCad in comparison to lead‑acid.

Note that NiCad also tends to have longer cycle life and often higher energy density than lead‑acid, and these are real differences too, but the option emphasizing faster charging is the most characteristic advantage in many practical contexts.