fsprow Posted March 20, 2018 Share #61 Posted March 20, 2018 Advertisement (gone after registration) Have been in Africa many times in remote locations. Unless you are needing a long (my favorite 400mm) lens, I just take - iPhone - Rather beat up Leica M4 with a couple of lenses and plenty of film Link to post Share on other sites More sharing options...
Advertisement Posted March 20, 2018 Posted March 20, 2018 Hi fsprow, Take a look here Charging batteries in the African bush. I'm sure you'll find what you were looking for!
Stealth3kpl Posted March 20, 2018 Share #62 Posted March 20, 2018 Sorry, I should have been more clear in my question. Even if you charge the storage battery first, how long does it take to charge enough (to subsequently charge cam battery). My concern (from experience of many years ago) is that unless you have really really large solar panel (many times bigger than in your picture) and perfect optimal condition (sunshine without clouds falling perpendicular to the panels), the solar panels don't produce enough to charge equivalent of cam battery even after full day. I precharged the storage battery from the mains supply before heading off on the 30 day trek. It might well be that it held enough power in there for me to recharge my M240 batteries for the 4 weeks, however, each time the storage battery's gauge suggested it wasn't full, I would top it up with the solar panel. I can't really answer your question other than I would expect an afternoon in the sun would provide much more power than needed to charge the M240 battery. Pete 1 Link to post Share on other sites More sharing options...
jmahto Posted March 20, 2018 Share #63 Posted March 20, 2018 (edited) I precharged the storage battery from the mains supply before heading off on the 30 day trek. It might well be that it held enough power in there for me to recharge my M240 batteries for the 4 weeks, however, each time the storage battery's gauge suggested it wasn't full, I would top it up with the solar panel. I can't really answer your question other than I would expect an afternoon in the sun would provide much more power than needed to charge the M240 battery. Pete That makes sense. I checked that PoweGorrilla's battery capacity is 24000mAh. If you precharged it then it has enough capacity to charge M240's battery at least 10 times (even with losses) without needing Solar charge. Edit: I looked at the case studies on Powetraveller site https://www.powertraveller.com/en/case-studies/africa-cape-to-cape-challenge/ I find it strange that why someone will use solar charger to charge laptop and other devices when car battery is accessible (as in case study pictures). I am certainly missing something. Edit2: Did some more googling. It seems relying on car battery for charging devices is not a good thing. It stresses the car battery and if car battery fails then you are stranded. https://news.energysage.com/solar-battery-chargers-everything-you-need-to-know/ Edited March 20, 2018 by jmahto Link to post Share on other sites More sharing options...
jaapv Posted March 21, 2018 Share #64 Posted March 21, 2018 Stressing an 80 Wh Battery by charging camera or laptop battery? You must be joking. Link to post Share on other sites More sharing options...
Reciprocity Posted March 21, 2018 Share #65 Posted March 21, 2018 Really? Who are you on assignment for that has such a request? The photographers I know who have done such work for the types of publications one generally pictures for this type of thing - (also, it should be noted, who very rarely dole out multi week assignments anymore - it's usually multi-day now) are generally working with a client that will help arrange such logistical support with fixers, producers etc, and will sure as heck not be using an M10...at least as a primary tool. This is a curious question. It’s not really anyone’s business to audit who this person is photographing for or why. This is the main reason why I exhaust all possible research before I post a question, that anything beyond the initial question is none of anyone’s business. I suggest the OP not answer what you have asked. 1 Link to post Share on other sites More sharing options...
jmahto Posted March 22, 2018 Share #66 Posted March 22, 2018 (edited) Stressing an 80 Wh Battery by charging camera or laptop battery? You must be joking.I didn't say that. The linked article seem to suggest that charging from car battery is not desirable. What is your take on the solar chargers? Edit: I know some people who camp out a lot (in cars or camper van kind). They always have a portable generator which uses car fuel. This can be used to charge car battery if needed. Edited March 22, 2018 by jmahto Link to post Share on other sites More sharing options...
mikemgb Posted March 22, 2018 Share #67 Posted March 22, 2018 Advertisement (gone after registration) I didn't say that. The linked article seem to suggest that charging from car battery is not desirable. What is your take on the solar chargers? Edit: I know some people who camp out a lot (in cars or camper van kind). They always have a portable generator which uses car fuel. This can be used to charge car battery if needed. I have a solar system that charges a dedicated 12v battery, much quieter than a generator. 1 Link to post Share on other sites More sharing options...
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