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  1. #1
    aka: Mike J. treebound's Avatar
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    NightSun light, new battery or replace all

    I've got an older light and am trying to decide if it would be worthwhile to rig up a new battery, or just try to run it for awhile and start shopping for a newer more modern/efficient light setup. This one is well over 10 years old and I'm going to do a few runtime tests to see how long the battery will power the lights.

    one thing I've never liked is not knowing the charge status of the battery while charging it.

    thanks in advance for any suggestions.

    .
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  2. #2
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    I expect you can get a better light system now for less than $30, so I can't see spending much to replace that 10 year old battery.

    I don't know anything about a 2005 NightSun dual beam system. Have you compared it to what's on the market now?

  3. #3
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    NightSun's web page offers a new 30 Watt Hour, 12 volt Ni-CAD BATTERY ONLY (Dual Beam Systems Only)for $99.95 but their page is 2001 and their links were last updated 1997 so their prices may have gone up.

    The bicycle lighting market has come a long ways since 200x.

  4. #4
    Senior Member a1penguin's Avatar
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    Quote Originally Posted by Athens80 View Post
    I expect you can get a better light system now for less than $30, so I can't see spending much to replace that 10 year old battery.

    I don't know anything about a 2005 NightSun dual beam system. Have you compared it to what's on the market now?
    Agree. Read through the $50 or less thread. There should be links to a recommended inexpensive light at Amazon. I think CatManDo has posted the link more than once.
    2012 Cannondale Synapse 3, 2012 Trek 7.5 FX Disc, 2003 Trek 2200 WSD, 1997 Specialized Rockhopper Al Comp

  5. #5
    aka: Mike J. treebound's Avatar
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    Okay, thanks, that is pretty much what I was thinking but wanted to ask in case I was missing something.

    Off to find the under 50 thread.

    Thanks for the reality checks.
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  6. #6
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    Quote Originally Posted by treebound View Post
    Okay, thanks, that is pretty much what I was thinking but wanted to ask in case I was missing something.

    Off to find the under 50 thread.

    Thanks for the reality checks.
    The issues with your NiteSun are its weight, the amount of handlebar real estate it requires and the fact you must give up a water bottle cage. You are probably better off getting a newer technology light unless these issues aren't a problem. If you have a Batteries Plus store in your area they will rebuild the battery pack for a nominal fee. Might be worth checking.

  7. #7
    aka: Mike J. treebound's Avatar
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    There are Batteries Plus in my area so I'll keep that option in mind, thanks for the suggestion. But, yep, as noted by your comments I do think it is time to get more modern lighting for me.
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  8. #8
    coprolite fietsbob's Avatar
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    Double Boiler melt the wax that was poured in the bottle around the batteries and solder in fresh rechargeable cells

  9. #9
    aka: Mike J. treebound's Avatar
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    Night Sun used a spray foam to fill the bottle and secure the batteries, so if I go that route I'll probably be better off to chop open the waterbottle and then use a cheap one to secure the new batteries, or just skip the bottle and put the batteries into a pouch and strap that to the frame or handlebars someplace.

    Something else to consider and maybe play with this weekend.
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  10. #10
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    Quote Originally Posted by treebound View Post
    Night Sun used a spray foam to fill the bottle and secure the batteries, so if I go that route I'll probably be better off to chop open the waterbottle and then use a cheap one to secure the new batteries, or just skip the bottle and put the batteries into a pouch and strap that to the frame or handlebars someplace.

    Something else to consider and maybe play with this weekend.
    If the Nite Sun bottle is anything like the Nite Rider the top cap will screw off counterclockwise. Nite Rider also used spray foam. Once the cap is removed the foam and batteries can be removed in whole without destroying. Save the foam and replace the batteries in the same location as the originals. The battery configuration is what is referred to as a daisy chain. In other words a wire is soldered from one battery to the next battery in line (the chain). To reseal the bottle use a couple strips of electrical tape along the outside edge of the cap/bottle.

    If you don't know what you are doing it is well worth the cost to have Batteries Plus do this for you. Soldering batteries inappropriately can lead to explosions. Another advantage to Batteries Plus is that they will, with the proper equipment, cycle the new batteries a few times which will ensure longevity and full capacity.
    Last edited by Hangtownmatt; 05-20-15 at 11:10 AM. Reason: additional information

  11. #11
    aka: Mike J. treebound's Avatar
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    See the pic above, the batteries are contained in an older plastic water bottle, top pops off at the neck, but no way will the foam and batteries come out without some surgery to the foam or bottle.

    I think I'm going to go grab it out of the car and start attacking the foam with a screw driver at my desk just for grins to see how far I can get.
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  12. #12
    aka: Mike J. treebound's Avatar
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    I cut it open and carved away some of the foam.
    ..

    (Note to self: do not try to carry one of these onto an airline.)
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  13. #13
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    I had the same light and rode with it for years. That said, the LED lights out now are inexpensive enough and way better than that light. I'd just replace the light. Looks like it served you faithfully for many years.

    J.

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