D800 powered by a V-Mount?

Somehow Li-Polimer cells have that cool image of superior technology. In reality they are about the same in energy density, weight, and all other fundamental parameters as Li-Ion. Their advantage is they could be easily shaped to fit in cell phones, and other small, thin devices. But when it comes to higher energy, Li-Ion cells are superior as combining cylindrical cells into a high energy pack is much easier -all laptops use Li-Ion packs, even electrical cars use them - thousands of cells of the same size and shape as laptops use.
 
wow, this forum is really active compared to where i came from, timescapes


as for the ion vs polymer. isnt one of the different in characteristic is the ability to handle the abuse such as drop.


i always handle the li-ion with extreme care, do you guys have any experience or knowledge of how much abuse can it handle. i use a soft rolling case for transport my equipment.




about the charger concern. im not sure but, isnt all mobile device use lithium polymer via simple dc charger via usb. so wouldnt any dc charger will work just fine on any battery?

sincerely
 
im confused

i mean, as long as the voltage from the dc the charger matches the input range of that battery.

for example. if the spec on the battery (im talking about power bank that already have a circuit, but it should apply to camera battery etc too?) say it accept 7-9v.

shouldnt any dc charger that does not output beyond that range simply work, regardless of amp?


sincerely
 
To septndu:

Please choose your words more carefully. When you ask 'so wouldnt any dc charger will work just fine on any battery?', what do you expect the answer to be?

All batteries are not the same. All chargers are not the same.
Some batteries are similar. Some chargers are similar.

A 7.2V charger for NiMH rechargeable battery (nominally a 6-cell stack) is not suitable for a 6.4V-8.4V Li-Ion (2-cell stack) battery.
A charger for a 6.4V-8.4V Li-Ion (2-cell stack) battery is not suitable for a 7.2V NiMH rechargeable battery (nominally a 6-cell stack).

Perhaps this might be a bit more clear if you read the batteryuniversity tutorial site. There is much good information there.

-- Bob Elkind
 
i guess i have a lot more to learn.


so far, i have like 50 chargers lying around and everytime i use it i just look at the voltage and amp, i guess that is a really bad habit.

(out of the curiosity, what is the worst case scenario (while voltage and amp match) battery doesnt get charge properly, die quicker, lit on fire, explosion?)




thank you so much for the advise.

sincerely
 
thanks again for clarifying

luckily not many gadgets nowadays come with NiMh battery or charger : p


sincerely
sept
 
septndu said:
luckily not many gadgets nowadays come with NiMh battery or charger
Click to expand...

Some uses for NiMH batteries:

  • remote controls
  • remote shutter releases
  • speedlights (flashes)
  • flashlights, rechargeable flashlights
  • camera battery packs (including D800 MB-D12)
  • some still image point & shoot cameras
  • add-on battery packs for speedlights
  • cordless and corded microphones

Even lead-acid batteries are still in use for strobes and flashes.

-- Bob Elkind
 
Pyriphlegethon said:
Regarding powering of D800 off 12 volts--doesn't the MB-D12 have an 8xAA option? 12+ volts right there, no?
Click to expand...

Correct. It is called the MS-D12, it's an 8-cell tray/holder which fits inside the MB-D12 grip, and is included with the MB-D12 grip.
It can also be purchased separately (although it is quite expensive if you are simply seeking an 8xAA battery holder).

I don't see any problem with modifying a MS-D12 clip to connect a + 8-15VDC power source to the camera, through the MB-D12 grip. If the supply voltage goes above 15V, the D800 might fry (or might not). Testing the upper supply voltage limits might be expensive.

- Bob Elkind
 
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I have been trying to get a D800 running off my rig's main battery for about 6 months, then I came across this:
https://www.paguk.com/catalog/58
I had already purchased a dummy battery and has a spare bare ended HiRose cable and they just sent me out the other components for a reduced fee.
I did have problems and the people at PAG were phenomenal even though their margin must have been minute. I have had dealings with PAG and they have always gone the extra mile or further. My issue transpired to be the dummy battery I had purchased, as soon as I attached a replacement everything was working perfectly.
They have told me they have already made up a whole load of down converters for D800s, and they make the leads to order so you can ask for any permutation.
I don't work for PAG, but have always found their batteries and chargers to be the best.
 
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