Charge Up Your Life With Powerex
No, the difference with the Powerex batteries was explained to me by our service manager. He pointed out that there were two capacities - 2700 mAh and 2400 mAh. I had always assumed that this was just a division into more or less capacity.
So it is, but he explained that the 2700 version carried that extra electricity at the cost of a drop in potential over time - you find it if the battery is charged up full but untouched after that. A month later might see the charge down by 30%. And on and on.
The 2400 version, on the other hand, has a different construction inside and can be relied on to keep 90% of a full charge over six months.
So the question that we should be asking the customers is whether their battery usage will be heavy and constant or intermittent and long-spaced. Choose your weapon.