Agree, but i meant using rechargeable batteries.
Sorry for a wrong example, here is a more relevant one:
SAT AG - Battery-Packs | Point of Power http://www.electrochem.org/meetings/...s/210/0356.pdf
"Mb sub" is using them within of a new line of their products:
Here is a quote from their site:
Advantages of Lithium-Manganese-accumulators- high efficiency, also in cold water
- no more memory effect
- no self discharging
- good shelf life
- don´t need security electronic
- long life cycle
- high capacity
- may be charged in shut enclosures
http://www.mb-sub.com/88/?L=2