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Posted: 12/16/2014 6:15:51 PM EDT
| I sure this has been asked before, but not recently I believe. With two locations for the battery on most PVS-4 scopes, can two batteries be used at the same time to make the run time longer? |
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Quick answer - No. The batteries would fight each other unless balanced, resulting in possible battery and wiring harness damage to the unit. However, if you're talking AA batteries, and used four batteries somehow, and put new batteries into each location, with some beefed-up wiring, then theoretically it's possible - Either that or some circuitry on each battery circuit with isolation such that you used 2 x AA batteries with boost converters and diode separation. The simpler version of the challenge is making sure the batteries are consumed at the same rate - A simpler solution, given batteries running out isn't really an issue for intensifier based equipment ( and if they do, they are easily changed ) would be to solve the "what if I don't have batteries" question - which kind of brings it back to survivalist concepts, and then you could make up a small hand-cranked generator to power the scope, or perhaps an "any voltage" converter to slot into a battery spot and take whatever power you have - car battery, solar rechargable, capacitor, potatoes and nails, etc. Regards David
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Quoted: From the operating manual: DO NOT use two lithium batteries in the sight at the same time. Why are there two battery ports when only one can be used? Probably someone had the bright idea of changing batteries while the thing was still switched on and in use... And found out the hard way that it wasn't a very clever idea... Though I'm sure the official reason was something along the lines of being able to change where they obscured line-of-sight or in case one got corroded.... The sorts of explanations that kind of make sense, but not enough so that anyone would seriously consider implementing them for that reason. Regards
David |
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