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lamp battery

Discussion in 'Anything Airgun Related' started by a1gunner, Jun 25, 2008.

  1. a1gunner

    a1gunner Pro Poster

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    my battery isnt due a charge till next month but i think i'll be usin it soon but i dont know if i should give it a charge now or leave it on to drain the battery and charge it up again.

    what's best for the battery?
     
  2. jamjon

    jamjon Posting Addict

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    to get the best performance from any rechargeable battery it's best to allways allow it to discharge fully before recharging it
     
  3. a1gunner

    a1gunner Pro Poster

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    will i damage the bulb if i leave it on for an hour?

    it has a dimmer so will it use power if i leave it on but dim the light down to 0
     
  4. jamjon

    jamjon Posting Addict

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    No you won't damage the bulb it's good for it to get some logner term use rather than being flicked on and off constantly
     
  5. a1gunner

    a1gunner Pro Poster

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    im just scared il fry the fillament:eek:

    should i have it half power half dim?
     
  6. jamjon

    jamjon Posting Addict

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    I'd dim it down just to reduce the heat
     
  7. a1gunner

    a1gunner Pro Poster

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    just flashed it into the field behind me and in the garden.

    it has a range of 35 yds of red filter illumination

    (does go further but you get a good illumination at 35)

    and without goes to 100yds. about 80yds with good illumination.

    good for airguns:)
     
  8. steve410

    steve410 Big Poster

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    I have a Deben lamp,and the instructions say never let the battery go flat or you will ruin it !!!!!! Keep it charged at all times .:up:
     
  9. Buzz

    Buzz Banned

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    That's good advice, but only if your battery is Nicad or NiMh. Lead acid or lithium will be severely damaged. Lithium, either ion or polymer can actually burst into flames if charged or discharged wrongly.
    Nicads and NiMh have a memory effect. If you always 1/4 discharge them and then recharge, after a while once it reaches the 1/4 discharge point it will appear to be flat and a deep discharge to 0.9volts per cell is needed to regain full capacity. If they are discharged beyond 0.9 volts per cell they are in danger of going "reverse polarity"......new battery needed !

    RTFM ALWAYS !!!!
     
  10. a1gunner

    a1gunner Pro Poster

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    i took it doen to about 1/2 i think:up:

    all charged up now anyway.
    it was next month that it was due a charge but i hope to use it sooner
     
  11. 8-ball

    8-ball Engaging Member

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    If it were me, I'd run it down again in a few days and then re-charge. Repeat this a few times over the next week until you are fully discharging and recgarging your battery. this will re-instate the 'memory' and you'll know what charge state it's at for when you need it.
     
  12. Buzz

    Buzz Banned

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    A1...what type of battery is it ??
     
  13. Stream

    Stream Member

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    If its a Lead Acid battery, such as a car, motorbike, or many yuasa type batteries, then these must be kept fully charged or they will Sulphate (the sulphate that forms on the plates during discharge hardens over time and is virtually impossible to remove, reducing battery capacity) These should be recharged about once a month if unused. Check the water if its not a maintenance free battery and keep above the plates using deionised water) If its a maintenance free battery don`t overcharge either or you will lose the water and won`t be able to replace. Automatic chargers and Tricklechargers (Automatic) that will cut out when fully charged are best for a top up charge, although if mild sulphation has occured then a very slow, very low amp charge with a non automatic charger will be necessary. As far as sealed Yuasa type lamp batteries are concerned, car battery chargers can be too fierce and will easily pop the little battery... (been there, cleaned up the utility room) for these use the recommended charger as recommended!
     
  14. a1gunner

    a1gunner Pro Poster

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    deben attom

    all i get of the battery is sealed lead battery:confused:
     
  15. Buzz

    Buzz Banned

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    Right...lead acid batteries don't suffer from memory effect, neither should they be discharged too deeply. Best bet is to charge it overnight after you've used it, then it's ready for next time out. The only thing lead acids don't like is being stored discharged. Only use the charger that came with it, because charging at too high a rate will cause it to vent. During periods when you're not using it, an occasional top up is advisable.

    All the above should only be what's written in the manual !!!!!!!

    It's also exactly as Stream has said...that I've only just read.
     
    Last edited: Jun 27, 2008
  16. a1gunner

    a1gunner Pro Poster

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    reason i asked was i hope to use it soon and wanted to boost the charge.

    i needed to know if i should use up the batery then re charge it

    well its charged now
     

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