Does anybody have any experience or any thoughts on hysteretic pulse charging of lead acid batteries (also called current interrupt charging I believe)? I happened to glance at the BQ2031 datasheet, and one of the algorithms is "Pulsed Current: hysteretic on demand."

Basically, the charger operates as a fixed current source up to the point where the battery overcharge voltage is reached. At this point, the charging current is inhibited, and then battery voltage decays towards the float voltage level. When the float level is reached, the charging current is enabled again. The process then continues on and on. The thing that I find attractive about this approach is that when the current is inhibited, the batteries can cool off. Also, there is only a single control loop for controlling current. Any thoughts, advice, experience, and info of any kind is much appreciated.