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Power Belts Preise

Power Belts Prices




Question of aight8:
Oktober 2010

Have not found the thread it was about Power Belts and their Prices, which surprised me a bit.

I need to provide a later, probably as my head lamp with current.

What used for your Belts? If No, as you solve the current problem in the boonies?

Have here two brief Belts rausgepickt:

http://www.bhphotovideo.com/c/product/77972-REG/Cool_Lux_BC3150_BC_3150_Battery_Belt_LCE.html
(12V/168WH - 2x XLR)
202.63 EUR

http://www.lichtset.de/kameralicht/akku/pantherelectronicbeltii.php
(13.2 V/9.5Ah - 2x XLR)
862.75 EUR

Why is this price range? I am quite prepared to spend ¬ 300 but strap, but 860 euros is definitely me too much.

Is that in the Belts as with the brands and NoName Batteries? Or what makes the difference in price and in what has 4x more expensive for the benefits?




Reply tommyb:

What Camera You want to use and which head light (with how much wattage)?



Reply aight8:

Achso sorry, must of course write again and again:

I have the Canon XH A1.

I am a Sachtler times of 8 LED (8 watts;)), Como 1800 (18 Watt - assumed LED) ne or more 75 watt halogen lamp "Panther Romy 75h.



Reply tommyb:

The simplest battery belt consists of a V-Mount plate s.Gürtel, a V-Mount Battery and a sufficiently long cable to the camera - to me personally this nickel cadmium / lead thinks "Battery life too heavy (especially the latter).

At least the 8LED and the Como would be allowed to operate with the camera battery. The 8LED works synonymous with 7.2 V, at the Como would be a 12V transformer required (it is in Bebob of very compact design for SONY NP-F, perhaps synonymous for Canon BP?).

The Panther 75 Watt - because you would need in any case is a slightly heavier battery belt - as these lead-acid battery belt of BHP. Alternatively, they could operate synonymous s.einem V-Mount battery belt, but then you should already have a battery with at least take 130Wh - weaker battery could cause damage to the awesome power of the lamp.



Reply Auf Achse:

Hello!

The need for a Power Belt, as I see in the nature of light: For a 75 watt halogen you'll need it with an LED (no preference which one) probably not. The difference lies in the power requirements, which is higher in the halogen to a multiple, severe and consequently greater is the Battery.
Before you such a thing to buy over 800 ¬ you should you not consider whether a clever enough cheap solution. Cheap battery pouch and 12V 7.2 Ah lead acid battery (about 30 ¬) pure, as is a one hour of light. With a 12V / 75W halogen lamp anyway EVERY Battery is soon broken, because flow at full throttle about 6A power and the battery anyway for such a little death! Plus, you'll get with the small battery (-> is relative to a car battery) synonymous not a 75 watt light output because the voltage at full load collapses safe under 12V.
My tip: It is cheaper to buy once a year, a new lead acid battery as a disgustingly expensive every three years!

If you look at an LED light buy, you should NOT do with feeding the camera batteries. Is very convenient ... No further Battery, fiddling with the extra Charger is omitted, no cables herumschwirrenden ,.... The reason here is synonymous for the camera battery to high power consumption. Strong LED has about 10W, so only a fraction of the halo. But at the 7V are almost synonymous 1.5 amps + the current requirement of the Camera! And that has a camera battery as it already damaging the XH A1 and lifetime shortening so you soon have to reckon with a noticeably shorter battery life.
I would be synonymous here use a cheap external lead acid battery. Of course, much smaller, which you can then plug in your pocket.
Or are you the practical effect of the camera battery power is worth more than the shorter lifetime, battery life + Neukosten. We could do but accept it as an argument.

LG, on-axis



Reply tommyb:

Quote:
If you look at an LED light buy, you should NOT do with feeding the camera batteries. Is very convenient ... The reason here is synonymous for the camera battery to high power consumption ... And that has a camera battery as it already damaging the XH A1 and lifetime shortening so you soon have to reckon with a noticeably shorter battery life.

This is incorrect.

Lithium Ion Batteries should never with more than 2 / 3 of its capacity discharged because s.dieser load the cells age very quickly. Really deadly discharging of the battery with twice the power (Battery 100 Wh, lamp with 200 Wh).

This rule applies to NiCd Batteries not necessarily (because you can synonymous with 100% to 100% work), in lead-acid batteries anyway (because these things take quite a bit).

The XH A1 has a maximum power consumption of 6.9 Wh in combination with the SACHTLER 8LED (8 watts) we ever come to a total output of 15 watts. To ensure the maximum lifetime of a battery, it should have at least 22.5 Wh (or 3 amps at 7.2 V).

On Ebay, there are reproductions of BP-970 Batteries with almost 58 Wh (7.4 V / 7.8 A) - those animals would be quite sufficient to supply camera head and light (even for the Como would be enough). The only question: how does one s.den juice the battery?



Reply aight8:

I understand the logic and Choice at the lights (still) not.

(1) Power is a bottleneck in mobile use anyway. Why should we waste so much electricity for LED halogen flood when hergibt so much more?

(2) of lead acid batteries I read constantly - how cheap they are - and take that one should prefer. But since everything you need? Battery, Cable, Mount ...? 've Never worked with lead-acid batteries.



Reply Auf Achse:

@ Tommyb: I base my comments primarily on practical applications -> Models, Automotive sector, electric winches for off-road cars (currents up to 350A), and much more ... and of course my head is light with its lead acid battery.
From these empirical results in my experience, the statements in some respects, are in conflict with scientific results and for I can not guarantee its accuracy.

@ Aight8: The LED technology with such a high light output is still very young, but in the future!
Main advantage: much lower energy requirement than the good old light bulb. The current drawback is the color temperature.

LG, on-axis



Reply tommyb:

... and I maintain contacts with battery manufacturers in China;)




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