I am gonging to buy a extra battery and a battery solar charger, then show the battery life bar or not isn't a issue from now on. Most importantly, I was told the solar battery charger can extend our battery life and it is a portable back-up power at the same time.
Be really careful, huan.
Solar chargers, in general, are bad for batteries. They're typically underpowered, and constantly drop below the current that the charger's control system needs to properly monitor battery charging, so they do a very poor charge, especially on rechargeable lithiums. The very large, roll up units are better, but the ones on that site you linked are very hard on batteries. They don't "extend" battery life, they shorten it, sometimes very greatly.
It is the article which inspired me to choose a solar battery charger, it sounds like a new and creative method to charge my battery, hope it really works.
http://www.articlesbase.com/technology-articles/solar-battery-charger-review-3598871.htm
That article is a scam, be very, very careful. It was posted by a reprehensible criminal, a vile little person who often calls herself Sabrina Lee or Lily Lee. The charger "she" recommends is totally inadequate for camera batteries. At best, it can charge phones or ipods.
If you're actually interested in solar chargers, I can send you some legitimate links, but be forewarned, they're very expensive (ones that actually work for a DSLR battery run $200-400) and awkward to use. They're really such a specialized thing that unless you're doing long travels away from power, they're usually not a good idea. They work best in situations where you can establish a "base camp", set up a solar charger and have one battery charging while you're out shooting on another battery. A charger that won't hurt batteries and is big enough to charge SLR batteries (the spammer charger is only big enough for cell phones or ipods) will set you back about $200. The average user would be much better off spending that $200 on 8 spare batteries, charging them all fully before the trip and whenever they're at a stable source of power.
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Rahon Klavanian 1912-2008.
Armenian genocide survivor, amazing cook, scrabble master, and loving grandmother. You will be missed.
Ciao! Joseph
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