Apart from output differences I understand the charging
method/monitoring of the ACP12x is different to the ACP7x (for example)
Is some sort of pulse system used to keep overheating at bay in the ACP
12x, and is it possible to overcharge with an ACP 12x, or in fact
despite its higher output levels does its more advanced charging method
offer greater battery protection.

Thanks Bill.

See More: Nokia ACP-12x pulsing?