norfolkgoose Posted September 13, 2014 Report Share Posted September 13, 2014 (edited) Hi all just wondering if anyone could tell me what battery is needed to power the aspro nv unit as at present its powered by 2 ultrafire 3.7 v batties (home made setup as sold to me) and would like more than 30 mins of use out of it . I also dont have a manual either so i'am unsure on what voltage it needs to run on properly . many thanks in advace . Edited September 13, 2014 by norfolkgoose Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 13, 2014 Report Share Posted September 13, 2014 (edited) Hi, . I had a quick check and seems they do ultra fire in two mAh options, 2400 & 3000. If your torch takes two 3.7v cells then you are running 7.4v so question is what mAh do you currently have? If you want it to last longer then increase the mAh of the batteries. Adding batteries in series increases the voltage and in parallel increases the mAh so you might be able to adapt something? Edited September 13, 2014 by onatangent Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 13, 2014 Report Share Posted September 13, 2014 Found this to; http://www.thehuntinglife.com/forums/topic/275746-gb-aspro-digital-night-vision-instructions/ Quote Link to comment Share on other sites More sharing options...
norfolkgoose Posted September 13, 2014 Author Report Share Posted September 13, 2014 Thanks for the reply what I really need to know is there a max size battery I can use does the unit have a built in resister to stop it from over loading so it does not fry say ... is 12v to much and would that damage it? On the other hand would a ns 50 battery pack or similar be suitable to use ...... I am really struggling to find out much about gb sights as they are no longer about and there is very little info on them if any on the net many thanks again . Quote Link to comment Share on other sites More sharing options...
pestbry Posted September 14, 2014 Report Share Posted September 14, 2014 If I rember right , the charger was 12v to battery packs but im sure it transformed into the unit at 6v. Get a 6v battery and try that first ? you don't want to blow the unit using 12v. I had 1 years ago and I bought little dry cell 6 v batteries for it Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 14, 2014 Report Share Posted September 14, 2014 (edited) It would have power board to regulate power distribution to the necessary components so adding more volts will start to labour downstream. A normal tolerance would be 10% input deviation. Did you manage to download the manual from the link and see if input voltages were mentioned? You can heat shrink batteries and make your own battery stick packs to the correct voltage and higher amp hours. Integral to the unit they wouldn't be. No different to high output pedal bike lights that have the batteries squirrelled away in a bottle so you can put them in the bottle cage on the bike. I will have a look and see what 3v cells are around. Seen the 3.7v ultrafire in 4000mAh but without knowing what you have cant say if that's going to increase your run time. Edited September 14, 2014 by onatangent Quote Link to comment Share on other sites More sharing options...
norfolkgoose Posted September 14, 2014 Author Report Share Posted September 14, 2014 At present its running off two ultra Fire brc18650 5600mah 3.7 li-ion and they just dont last very long . and no I have not been able to get a copy off the manual as some guy on there has it so have pm him for a copy with out any luck yet . Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 14, 2014 Report Share Posted September 14, 2014 I've had a search and as you said, info is definitely lacking. How old are the batteries is one thing to think about. Without seeing the tech specs I cant tell you what consumption and what battery voltage to use and what mAh to use to give you your preferred running time. Alot of spaces need filling lol. Quote Link to comment Share on other sites More sharing options...
norfolkgoose Posted September 14, 2014 Author Report Share Posted September 14, 2014 The batties are only 6 months old I have 6 of them and all preform the same . I have seen a battery pack on ebay for 28 quid that maybe suitable size and voltage wise but am worried it could blow the unit ! Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 14, 2014 Report Share Posted September 14, 2014 (edited) As mentioned I would be inclined to aim for the voltage you have been using so far and up the amps. Is the ebay pack a beefy one then? While I remember, your battery compartment could be wired to run the batteries in parallel so the system voltage is just 3.7v but 11.2Ahrs(11200mAh) compared to a series setup of 7.4v 5.6Ahrs(5600mAh). Info needed for me to give you an informed decision so fingers crossed the OP other forum replies. I will keep digging, see if any on ebay and message the seller for info etc. Edited September 14, 2014 by onatangent Quote Link to comment Share on other sites More sharing options...
norfolkgoose Posted September 14, 2014 Author Report Share Posted September 14, 2014 Many thanks for your efforts very much appreciated :-) Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 14, 2014 Report Share Posted September 14, 2014 Found cock all so far! Saw an old post on pw about a duff battery pack and containing 4 batteries and a pcb. No replies, typical. Would be fair to assume the system is 6v but that's not in my nature. Is the battery pack a remote modular one as I have seen some in pics. Just thinking you could check the voltage at the plug end. If I were to assume then 6v is fair as read about someone converting to 6v battery and having spare higher capacity on an old ebay sale. Old review I found said it ate batteries which is reassuring at least. Sorry I cant help more. I am no stranger to making battery packs though. If you have a model shop they could solder a battery pack up for you and shrink it if you don't fancy it. Quote Link to comment Share on other sites More sharing options...
pestbry Posted September 14, 2014 Report Share Posted September 14, 2014 I ran mine off 6v dry cell battery Quote Link to comment Share on other sites More sharing options...
onatangent Posted September 14, 2014 Report Share Posted September 14, 2014 Do you remember what capacity the dry cell was and how long it ran for? Quote Link to comment Share on other sites More sharing options...
ant.mass Posted September 16, 2014 Report Share Posted September 16, 2014 (edited) when i had my GB Pro many years ago i ran it off a £8 6v 4Ah Sealed Lead Acid Battery and it ran for hours i got a full nights shooting out of it no problem. Edited September 16, 2014 by ant.mass Quote Link to comment Share on other sites More sharing options...
norfolkgoose Posted December 5, 2014 Author Report Share Posted December 5, 2014 Just ran the aspro off the 12v cigarette port and works fine so can shoot from the truck and not have to worry about running out. 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.