HP15C LE vs. HP15C

[Katie Wasserman]

(07-06-2014 12:37 PM)jebem Wrote:  One (big) difference between HP-15C and the 15C LE is the total battery capacity:

- The HP-15C works with three 1.5Volt batteries in Series, for a total of 4.5Volt providing just the equivalent capacity of a single battery (150mA/h for Alkaline or 200mA/h for Silver-Oxide types).

- The HP-15C LE works with two 3Volt batteries in Parallel, for a total of 3Volt providing a total capacity equivalent to two batteries (total of 450mA/h for CR2032 Lithium-manganese dioxide type).

You're conclusion is correct, but just to be explicit about this .....

Using Energizer specs sheets:

Total energy available for three 357 (silver oxide) cells is nominally 3 x 150mAh x 1.55 volts = 697.5 mWh.

Total energy available for two CR2032 is nominally 2 x 240mAh x 3.0 volts = 1440mWh.