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Step-down Voltage Converter

  • 17-07-2012 6:41pm
    #1
    KonFusion
    Registered Users, Registered Users 2 Posts: 2,588 ✭✭✭


    Anybody know a brick'n'morter in north county dublin where I'd buy one of these? (It's for charging TM 7.4v batt for an MP7).

    Thanks.


Comments

  • #2
    NakedDex
    Registered Users, Registered Users 2 Posts: 5,984 ✭✭✭NakedDex


    Why, pray tell, do you need it? Those packs charge from an 8.4V NiCd pack charger?


  • #3
    KonFusion
    Registered Users, Registered Users 2 Posts: 2,588 ✭✭✭KonFusion


    Quote from redwolf:
    Tokyo Marui Charger for 7.2V Micro NiMh battery. Suitable for use with the 7.2V 500mAh battery used in the NEW Tokyo Marui USP / M93R / G18C AEP. It has an automatic cut-off function after 2 hours charging. This is a 110v Japan / USA type plug charger. Marui has no plans to make a 220v version of this charger.

    If you live in the UK or any other country with a 220v power supply, you will need to buy a step-down transformer to 'step-down' your 220v power supply to 110v for this charger


  • #4
    NakedDex
    Registered Users, Registered Users 2 Posts: 5,984 ✭✭✭NakedDex


    Or chuck the 110V charger and use a standard 220V charger that comes with any clone/220V NiCd 8.4V pack charger.


  • #5
    KonFusion
    Registered Users, Registered Users 2 Posts: 2,588 ✭✭✭KonFusion


    Thanks for the tip :)

    However I'm asking on behalf of a friend and he wants the converter; doesn't want to buy it online,doesn't want to buy a new charger, nor does he want an adapter for the batt with a tamiya connector.


  • #6
    NakedDex
    Registered Users, Registered Users 2 Posts: 5,984 ✭✭✭NakedDex


    Alrighty. I'm just suggesting from experience with that gun and battery. The voltage transformers are big, bulky and pricey. He'd also be plugging a transformer into a transformer (as an electronics person, that's mind bogglingly silly) but if he wants cake, give him cake.

    You'll get 220-110 transformers in Maplin or Radionics. They'll be measure in VA, not Watts (for tech reasons), but something around the 50VA mark should be fine.


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  • #7
    Inari
    Registered Users, Registered Users 2 Posts: 3,152 ✭✭✭Inari


    We've missed you Dex; his place needs your knowledge and answers!

    I think the best thing to do for performance and ease of use for the MP7 is to use a drop in battery adapter (seen here) as it allows you to bypass the 7.2v specific battery/charger combination in favour of the more traditional 8.4v battery, without much extra duress on the gun :)


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