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  1. #1
    Dead Men Assume...
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    Need Replacement Battery for JetLites Starfire

    Hi all,

    Does anyone know of a replacement battery for the JetLites' Starfire light? I'm trying to find something that won't involve an arm or a leg. I need a 47w 13v 3800 NiMH water bottle battery.

    Would one of these work? http://www.batteryspace.com/index.as...S&Category=884

    Thanks!

  2. #2
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    It looks like it would work. You said you needed it to be 13 V, well 11 NiMH cells is roughly 13.2 V. I'm not sure what you mean by the 47 W and the 3800. Does the pack need to be able to output 47 W (a strange number)? And does the 3800 refer to the A-h capacity you need?
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  3. #3
    Mad bike riding scientist cyccommute's Avatar
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    Quote Originally Posted by Ngchen View Post
    It looks like it would work. You said you needed it to be 13 V, well 11 NiMH cells is roughly 13.2 V. I'm not sure what you mean by the 47 W and the 3800. Does the pack need to be able to output 47 W (a strange number)? And does the 3800 refer to the A-h capacity you need?
    Ni chemistry cells put out 1.5A nominal so 11 cells is what is needed for a 13.2V system. The 3800 is obviously the mAh capacity of the battery. The 47 W is probably watt-hour rating which is the number of watts the battery can put out in an hour but Wh aren't used that much.

    Ironmac, just about any of those batteries would work. You'll need a connector. You can recycle the one from your battery which will probably require some soldering or you can put on new connectors which will mean on both the light and the battery. I like Dean connectors since they are tight and have little resistance. You should be able to pick them up at any hobby shop that does RC cars or planes.

    The capacity rating...the Ah number...doesn't matter. A 5Ah (or 5000 mAh) battery will just give you a longer run time. Voltage is still the same.
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    Quote Originally Posted by cyccommute View Post
    The 3800 is obviously the mAh capacity of the battery. The 47 W is probably watt-hour rating which is the number of watts the battery can put out in an hour but Wh aren't used that much.
    Except that 3800mAh at 13.2V is 50Wh. Sounds like a max power draw, which you don't need to worry about, because any rechargeable battery can source 4A.

    So any 13.2V battery should work fine. Higher capacity (mAh, Ah, Wh) just means longer runtime and probably a larger and heavier battery.

  5. #5
    Dead Men Assume...
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    Thanks everyone for your input.

    Cyccommute, I want to avoid any soldering due to poor past experience; the new connectors that you're talking about...is it included in the batteryspace package? Quoting from batteryspace:

    # 4' long of Trail-Tech Coaxis Female Plug for charge/discharge terminal
    # Included one 4' long of Trail-Tech Coaxis Male plug for you to connect wire to a lighting and plug it into battery pack.

    * Cut the light connector off then connect by included water-proof male plug connector.
    * Need additional connector? Please click here to order.

    # Included one Connector Adaptor from Trail-Tech Male plug to Standard Male Tamiya connector cable for connecting battery pack to charger

  6. #6
    Mad bike riding scientist cyccommute's Avatar
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    Quote Originally Posted by IronMac View Post
    Thanks everyone for your input.

    Cyccommute, I want to avoid any soldering due to poor past experience; the new connectors that you're talking about...is it included in the batteryspace package? Quoting from batteryspace:

    # 4' long of Trail-Tech Coaxis Female Plug for charge/discharge terminal
    # Included one 4' long of Trail-Tech Coaxis Male plug for you to connect wire to a lighting and plug it into battery pack.

    * Cut the light connector off then connect by included water-proof male plug connector.
    * Need additional connector? Please click here to order.

    # Included one Connector Adaptor from Trail-Tech Male plug to Standard Male Tamiya connector cable for connecting battery pack to charger
    You'll need to make an adapter to your current plug from the BatterySpace one. I doubt that they use the same type of plug. You could use the included male adapter to make the connection by using the old connector for the battery (probably the female end). You could even use a crimp connector although those aren't that water tight.
    Stuart Black
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  7. #7
    Dead Men Assume...
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    Rats...thanks cyccommute.

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