u caller night eye

[shotgunny 39]

hi all

i recently bought a u caller night eye lamping kit with a 12 volt battery pack and charger.

When i went out last night after about an hour the light wasnt worth a piss.

Is this normal for the battery to die out this quick

I had it charging over night and it was at full strenght when i left home.

Atb

myles

[freem 25]

i don't know these lamps myles, but that doesn't sound right anyway

maybe someone else on here uses them?

[shotgunny 39]

what would be the general life from a 12volt battery ???

atb

myles

[moses 5]

It would depend on what battery it is just cause its 12v they are not all the same. it could be 12v 3ah,7ah, 10ah, 14ah so on and so fourth what is your s and i will be able to help a little more

[shotgunny 39]

its a 7ah mate

atb

myles

[moses 5]

Okay right was the lamp on constantly for that hour or was it just spotting and shooting. if it was on constant then thats about right if not then i would check the charger. they break really easy i have been through three in a year. on a 7ah you will get about 45 mins of constant light.

[shotgunny 39]

to be honest it was on most of the time so i will conserve the battery next time.

how long would you be looking at if its just spotting and shooting ????

atb

myles

[cassshantia 16]

the best thing to do with a new battery is switch lamp on and run it flat ,

then charge it up to full ,with a 7ah battery the lamp (if 50 w bulb used) should last 2 to 3 hrs but if the lamp has a 100 w bulb in it will only take an hour or so to run down

[matt_hooks 188]

The charge cycling depends on what type of battery it is.

 

Is it a lead/acid type, or a NiCad, or a Li Ion, or a NiMH, or even a lithium polymer?

 

Lead acid, if the life is reduced (which can happen with age, as the lead plates become covered in lead sulphate, especially if the battery is left un-charged for any period of time).

 

If a NiCd, then you need to store it un-charged.

 

It's unlikely it's any of the others.

 

If you are running a 50W bulb, at 12 volts, your current is just marginally over 4 amps, so your light should last in theory about 1 3/4 hours. Of course the light level will drop off, so it might well be useless after about an hour of light.

 

If it's a 100W bulb, then halve the time!

 

Added to this, at 5A, you will be dissipating a fair amount of power inside the battery (did it get warm?) further reducing useful life!

 

I would recommend some of the newer LED lamps, which give you a similar light output at much lower current drain. They cost a bit more, but it's worth it!

[shotgunny 39]

It's an acid/lead battery mate.

I went to my local gun dealer and bought a 50watt bulb from him so hopefully I will get more life tonight.

Atb

myles