why sealed lead acid battery has higher charger efficiency than unsealed one?

Question

please answer only if you are confident with it

Answer 1

I suspect if you charge both at the same rate, the efficiency will be comparable. You can choose to charge an unsealed one at a higher rate, though less efficient, because it has a mechanism for the resultant gases to escape. That's just an educated guess.

Answer 2

When gases from Electrolysis (Hydrogen + Oxygen) bubble from a battery, as well as evaporation of water escaping from the the same vents significant amounts of chemical energy are "leaving the system".

Although a sealed lead acid battery will allow heat to escape through conduction, it causes more of the energy of vaporization and electrolysis to stay in the "system of the battery". Some of the energy efficiency of a battery system involves heating the battery during both charge and discharge, and since a sealed lead acid battery simply doesn't allow as much of this chemical and vaporization energy to leave the system, it is slightly more efficient.

A battery would be 100% efficient if no heat escaped, had no chemicals or vapors escape and all the energy put in as a charge came out at discharge. A lead acid battery is already rather efficient (70%+). By reducing the energy rich gases and heat of vaporization from escaping from open vents, the more net energy is left in the battery system.

Answer 3

One possibility is that the sealed battery never permits water to be added and use of undistilled water can affect efficiency. I believe that the sealed battery may use a catalyst to recombine and oxygen and hydrogen produced by electrolysis, avoiding contamination. A battery that does not lose water and avoids contamination (from breathing, etc.?) may be configured more efficiently for recharging. Plate gaps may have to account for possible sludge that can short out the plates.

Answer 4

well i work at a battery store known as batteries plus to start off. a sealed lead acid battery is of course sealed wich means it never needs maintence because it never loses electolight through venting of hydrogen like a regular lead acid battery.

but over all a non selaed batter can be easily rebuilt and lest costly over all, also both batteries sealed and flooded can be pulsed for thirty days returning the battery to its orginal state of brand new or even better.

any questions calll

630-355-6822 batteries plus

Answer 5

Avoids Contamination?