colin lad Posted March 24, 2015 Report Share Posted March 24, 2015 a quick question for you home builders with an idea of electrics, i am in the process of building my 1st diy nv build it will be built in a project box for all electrical components but the battery will sit attached to outside if i leave all the wires connected then box sealed with just the recharge point protruding so it can be re charged hope you following so far, my question is if i do this and use up battery when out could i connect a spare to the charging point that protrudes as a spare or would i then be pushing 24v to camera and screen or would it still be 12v as the main battery will be flat hope that makes sense colin Quote Link to comment Share on other sites More sharing options...
spandit Posted March 24, 2015 Report Share Posted March 24, 2015 As far as I can tell, your two batteries would be connected in parallel, so 12V, although I think the new battery would discharge to charge the old battery so you'd probably get less fairly quickly Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 24, 2015 Author Report Share Posted March 24, 2015 thanks it would only be as an emergency if main battery run out in the field colin Quote Link to comment Share on other sites More sharing options...
spandit Posted March 25, 2015 Report Share Posted March 25, 2015 My logic is thus: When I need a 12V supply in the workshop, I sometimes use a car battery charger. When that's being used to charge a car battery, the +ve terminal goes to the +ve and vice versa. So both +ves are joined together and so are both -ves. This is a parallel circuit so that's why I don't think you'd be putting 24V into your NV. I'm not an expert, by any means but I think you'll be fine Quote Link to comment Share on other sites More sharing options...
Ciderbooze Posted March 25, 2015 Report Share Posted March 25, 2015 12v batteries in parallel = 12v output 12v batteries in series = 24v output It's never a good idea to connect charged and discharged batteries together. You could fit a switch to isolate the depleted battery from the cct when you wanted to use the backup. Quote Link to comment Share on other sites More sharing options...
evo Posted March 25, 2015 Report Share Posted March 25, 2015 fit the battery to the rear of your project box,,if it runs out then just put a spare battery next to it and use elastic bands to keep it there then put the lead from the dead battery into the charged one, simples really, in saying that , my kits have a battery on them and not once has it run low on power even after a whole night out shooting, infact I,ve actually been out on two consecutive nights and it still lasted ok with no problems at all if going out night shooting I do always carry a spare, never ever used it though Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 25, 2015 Author Report Share Posted March 25, 2015 Evo the battery is on out side of box but the wire runs into it so no external wire also battery has wire connected to it, but spare has no wire Will try get some pics up tonight Colin Quote Link to comment Share on other sites More sharing options...
evo Posted March 26, 2015 Report Share Posted March 26, 2015 when you put the pictures up colin I,ll see how you can improve /modify it bud atb Evo Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 these are pics from 3 days ago i have made a few changes since and will get some more up soon but for now Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 and now i have taken cable tie off as that was holding it tight while glue set, i have moved recharging cable into project box and added a switch on side to isolate for while charging it has 2 strips of velcro on top and 2 on spare battery incase i need extra power should i run out just pop on top and plug in charge port Quote Link to comment Share on other sites More sharing options...
Davyo Posted March 27, 2015 Report Share Posted March 27, 2015 (edited) The 12v DC designated cctv batteries from spycameracctv.com run for 8hrs continous.I stay clear of those blue batteries sorry but that my opinion.Like evo said a good battery will get you 2 to 3 nights out on one charge as you are not running it continous all the time. Cracking job by the way, but have you tried mounting the battery behind the monitor, means you can get the monitor lower down which is better for head position. Edited March 27, 2015 by Davyo Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 the spare one i have is the one you mentioned i shall see how this blue one goes as its all built and don't want to change it before weekend but i will then change them over, though i am going to try a build to go on the 410 hushpower next so may use blue one on that saves wasting it while it's still working, what sort of distances can i hope for using the e700 and some good ir light source colin Quote Link to comment Share on other sites More sharing options...
billytheghillie Posted March 27, 2015 Report Share Posted March 27, 2015 The 12v DC designated cctv batteries from spycameracctv.com run for 8hrs continous.I stay clear of those blue batteries sorry but that my opinion.Like evo said a good battery will get you 2 to 3 nights out on one charge as you are not running it continous all the time. Cracking job by the way, but have you tried mounting the battery behind the monitor, means you can get the monitor lower down which is better for head position. I like the red rifle thats mounted on Quote Link to comment Share on other sites More sharing options...
Davyo Posted March 27, 2015 Report Share Posted March 27, 2015 the spare one i have is the one you mentioned i shall see how this blue one goes as its all built and don't want to change it before weekend but i will then change them over, though i am going to try a build to go on the 410 hushpower next so may use blue one on that saves wasting it while it's still working, what sort of distances can i hope for using the e700 and some good ir light source colin Depends on your scope, Home built NV's don't like top end scopes the best scope i came across was a hawke 3-9x50 with parallax was brilliant clarity wise, you will be able to see further than your shooting capability but most importantly see your back stop. Quote Link to comment Share on other sites More sharing options...
Davyo Posted March 27, 2015 Report Share Posted March 27, 2015 (edited) I like the red rifle thats mounted on Ha ha, its for shooting sitting down, no i sold my last built including the hawke 3-9x50 before i bought the photon XT so i removed it from the rifle. Edited March 27, 2015 by Davyo Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 my lr has a hawke sidwinder 30 on it and the hmr has a hawke varmint both work well with my starlight Arrow though i get on well with the arrow i just had this urge to build a home build does that mean i am now hooked lol colin Quote Link to comment Share on other sites More sharing options...
Davyo Posted March 27, 2015 Report Share Posted March 27, 2015 Yep I blame evo. Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 (edited) lol yeah but it was your thread i was following when i decided to have a go colin i would say a 3 way blame activeviii evo and yourself lol Edited March 27, 2015 by colin lad Quote Link to comment Share on other sites More sharing options...
Davyo Posted March 27, 2015 Report Share Posted March 27, 2015 (edited) lol yeah but it was your thread i was following when i decided to have a go colin i would say a 3 way blame activeviii evo and yourself lol Yeh but I wouldn't of had a thread for you to follow so ultimately its evo's fault.When the postman comes,or a courier my wife says "that blooming evo" Edited March 27, 2015 by Davyo Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 good shout i didn't think of telling her in doors that's it's the fault of others on here and not me must try that with the next order colin Quote Link to comment Share on other sites More sharing options...
evo Posted March 27, 2015 Report Share Posted March 27, 2015 looks sound colin, but one word of warning you will end up like me,davyo and mickmiller, totally hooked on night vision, the money me and dave (mickmiller) have spent on experimenting is unreal,camera after camera, ir after ir the lot, I did warn davyo he would get hooked on it and he is, its bloody more addictive than any drug :lol: , but drugs are cheaper, enjoy mate and good luck with it as soon as you shoot your first rabbit or fox with it you will be addicted to homebuilds,,ask davyo, Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 thanks i am already planning a build for my 410 hush power was thinking of just using a doubler for magnification as it will only be shooting to 25 yards colin Quote Link to comment Share on other sites More sharing options...
evo Posted March 27, 2015 Report Share Posted March 27, 2015 thanks i am already planning a build for my 410 hush power was thinking of just using a doubler for magnification as it will only be shooting to 25 yards colin I await in anticipation Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 27, 2015 Author Report Share Posted March 27, 2015 was thinking of the aiming side of things, dont know if it will work but was thinking down the lines of one of them cheap £10 air rifle lazer sights should show a bright spot on screen put that in centre of pattern well that's the idea colin Quote Link to comment Share on other sites More sharing options...
Davyo Posted March 27, 2015 Report Share Posted March 27, 2015 You will be building a NV driving system as well if you have a 4x4, spending all night driving the stubbles farmer thought he'd seen a ghost when he saw just a face lit up going across his field at 25 mph. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.