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  1. #1
    Senior Member DarthSensate's Avatar
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    On board chargers

    I have gotten zero responses to my request for comment on Razor/PowMax Leadman 36v chargers.

    So... What are your recomendations for a small, on board 36V charger?

    What are you using now (On board)?

    How much was it?

    Thanks

  2. #2
    put our Heads Together cerewa's Avatar
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    you might want to ask at http://endless-sphere.com/forums if you have not already.
    Some awesome folks who are working to give Haitians the ability to manage their safety and their lives:
    Haiti Partners

  3. #3
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    I've been running a Wilderness Energy BL-36 with recyclable lead acid batteries as my daily commuter for almost 3 years, and have had to replace the Soneil 36 volt 1 amp charger twice. No obvious reason for any of the failures- lightninig strikes, exploding transformers, etc. but each one has lasted only a little over a year. They are inexpensive to replace, but I'd be interested if there is a higher quality alternative. I usually leave the bike sucking a socket for for a 10 hour workday and overnight, so I'm reluctant to use a higher amp charger. BTW, ElectricRider in Kansas has gotten one to me within 3 days after I ordered it.
    Last edited by pebbleworm; 05-24-09 at 09:30 PM.

  4. #4
    Banned.
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    It depends why do you carry on board charger.
    You didn`t mention opportunity charging, but my main reason for carrying on board is a chance to plug in quick without unpacking charger. Here in Calgary, Canada live receptacles are common and everywhere.
    It is heaven for stealth charging.
    I carry Soneil 10A charger for my 36V10AH LiFePo pack, 2A charger rather doesn`t make sense here, since what to do for 3-4 hours??
    I during my average 30 min charge have a meal.
    MC

  5. #5
    P7 Fanboy JinbaIttai's Avatar
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    Quote Originally Posted by pebbleworm View Post
    I've been running a Wilderness Energy BL-36 with recyclable lead acid batteries as my daily commuter for almost 3 years, and have had to replace the Soneil 36 volt 1 amp charger twice. No obvious reason for any of the failures- lightninig strikes, exploding transformers, etc. but each one has lasted only a little over a year. They are inexpensive to replace, but I'd be interested if there is a higher quality alternative. I usually leave the bike sucking a socket for for a 10 hour workday and overnight, so I'm reluctant to use a higher amp charger. BTW, ElectricRider in Kansas has gotten one to me within 3 days after I ordered it.
    Now that's a man that knows how to take care of lead acid batteries!

  6. #6
    Junior Member
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    It's not that miraculous- the original batteries that came with the kit started showing signs of failure after only 4 months, but to prove a point I ran them for a full year. The last two months were painful, but by keeping speeds to around 15 mph I was able to make it home (5 miles) against a 20 MPH headwind without the yellow light coming on. I did not enjoy those two months. The replacement set of batteries -something EV specific from Electric rider (buy stuff from them!) is now 23 months old and are still working great. I do slap the charger on at the end of every run and try not to overcharge. If I do forget to plug in, I can still make the 10 mile round trip without any real problems. Treat lead-acids nice and they will take care of you. Plus they are pretty easily recycled, something that NiMH and LiPo's are not, at least just yet.

  7. #7
    Senior Member DarthSensate's Avatar
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    So that's two comments for Soneil brand chargers. But the 1amp charger sounds a little unreliable. Are there quality problems with the Soneil's? 10amp charger sounds fine for LiFePo packs but not for SLA's. I would not want to rapid charge an SLA pack to often.

  8. #8
    electronic wizard raypsi's Avatar
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    Razor?

    They had a recall back in 2005 on their chargers, seems they like to catch fire.

    Now my crystalyte 36V 3 amp charger bought the farm the first month of use, cheap Chinese dodo. I was able to fix mine and make it more beefy and less prone to failure. See my crytalyte charger mod in this forum here: http://tinyurl.com/njuw39

    If you got one I'd see if there is a recall on it. If no recall do some upgrading to it.

    If I remember rightly my crystalyte 36v 3 amp charger goes for around $30. I've carried it with me a couple of times so I could make the round trip on electric power.

    later OM
    ray
    Last edited by raypsi; 05-31-09 at 09:38 PM. Reason: more
    may the rest of your life be the best of your life

  9. #9
    Senior Member DarthSensate's Avatar
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    Quote Originally Posted by raypsi View Post
    If you got one I'd see if there is a recall on it. If no recall do some upgrading to it.

    If I remember rightly my crystalyte 36v 3 amp charger goes for around $30. I've carried it with me a couple of times so I could make the round trip on electric power.
    ray
    Thank you for that info, Ray.

    My experience with power circuit electronics is very limited. I once repaired an old TV by replacing the power transistor and bridge circuit diodes with matching parts. But modding is not something I would trust my self to do.

    Anyone else out there carrying a charger on their bike with them??

    If so, what make and model?

  10. #10
    Senior Member DarthSensate's Avatar
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    Finally spent the cash and bought a Save-A-Battery 36V charger. The entire unit fits nicely in by controller bag and has the desulfating cycle/circuitry I wanted for my SLA battery packs. So far so good after two weeks.

    Save A Battery 2365-36 36-Volt Battery Charger and Maintainer
    https://www.amazon.com/Save-Battery-...504400&sr=1-10

    I also considered the Soneil 36V SRF series but they are significantly more expensive. There were also a couple other Chinese scooter brand chargers that "supposedly" had desulfating cycles but i could not get any confirmation or reviews on any of them.

  11. #11
    Senior Member DarthSensate's Avatar
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    This charger has now been in service for over a month and working beautifully.

    I believe it has effectively reconditioned my very old SLA packs as I seem to be getting a few more miles out of them now and climbing hills without depleting the cells prematurely. I am currently riding 10-12 miles mostly uphill to work each morning without any voltage sag issues averaging 15-17mph. Return trip is downhill so, not a strain on the batteries. I'll be expanding this ride next month to 17miles each direction; half downhill, half uphill.

    Fits in the handle bar bag along with wiring and controller and no heat issues in the bag. ( I do unzip the bag when it is plugged in to make sure it is ventilated though.)

    My SLAs are each about four years old. I've been using the same ones for three years now.

    Save A Battery 2365-36 36-Volt Battery Charger and Maintainer
    https://www.amazon.com/Save-Battery-...504400&sr=1-10

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