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  1. geeeyejo1

    Battery Charging Question

    Ok, not EV related but a quick question about battery charging. I just bought a new Sony Vaio laptop. There is a battery management setting that only allows the battery to charge to 80% full - they claim that this increases the amount of cycles and hence the life of the battery. Does this...
  2. geeeyejo1

    Safe Outdoor LIFEPO4 Storage Temperature?

    Well the weather has been getting marginally warmer on the East Coast and rather than removing my LIFEPO4 battery and bringing it indoors to charge and store after each use; I would like to start keeping it on my bike and keeping it outside on the porch. Going down to 38 Deg F tonight so I...
  3. geeeyejo1

    Range Test

    Well decided to assess the range of my Ebike today - prior rides have all been mostly at 3/4 throttle averaging 25MPH or so. Power consumption was near 1AH per mile. Today I pedaled nearly all of my ride and averaged 15-18mph - just a few bursts to 23-25mph to make lights - HUGE increase in...
  4. geeeyejo1

    Scale to weigh E-Bike

    Just use the same scale that you weigh yourself with. Pick up the bike and get on the scale - note weight. Then weigh yourself and note weight. Subtract the weight of yourself from the weight of yourself and your bike - easy and accurate.
  5. geeeyejo1

    New Speed Record (For Me!)

    Took the Gary Fisher with the 48V1000W Yescom kit for a run to the bank on Sunday - weather was warmer than I have been usually riding in (about 40DegF) - on a nice slight downhill run with the wind at my back the bike hit 32.7mph - felt like I was flying on the ground! On the way home; I...
  6. geeeyejo1

    Is My Regen Working?

    I noticed a few mornings that before I plug in my battery (when pedaling from my car to the train about 50 yards away) that my wattmeter powers up and beeps like when the battery is plugged in. Is this regen from the motor?
  7. geeeyejo1

    Quick Video During Ride Today

    Took a quick video during a 15 mile ride to Cheesequake State Park today. Park is nearby my house - rode there and then around the park - some dirt trails, gravel and paved. This clip on paved road - hit about 27 mph here and a top speed of 31mph in another area in the park...
  8. geeeyejo1

    Finally Met Fellow Ebiker on The Commute

    Prior to getting my Ebike on the road; I had seen a few others during the course of my commute. Today I finally met a fellow Ebiker on the commute to the Statne Island Ferry. I was headed up the last hill on Bay Street and passed a fellow on a folding Ebike struggling up the hill. He arrived...
  9. geeeyejo1

    Sunthing Battery 15 Cells?

    Well have had my Sunthing pack for a few weeks now and becoming more familiar with it's status. When fully charged the pack goes to 60.3V. After I disconnect the pack from the charger, the surface charge slowly dissipates and within roughly 24 hours the pack settles at 53.4V. It will then...
  10. geeeyejo1

    48V Headlight Installed

    Picked up this 48V 7 LED headlight on Amazon for only $7.46 delivered! I spliced into my battery connector and wired in a switch (actually a household light switch) that I concealed in a small frame top bag. Works great - could be a little brighter but will use in conjunction with my battery...
  11. geeeyejo1

    "True" Power Rating of 48V1000W Yescom Kit

    I was monitoring the Amperage and Wattage on my Wattmeter this afternoon on my return commute home. To my surprise during some periods of WOT I was peaking at 1500W+ to the motor. I assumed that my 48V1000W kit equated to a 20A controller coupled with the 50+ watts of a "48V" battery to...
  12. geeeyejo1

    Cold Thumb!!!

    Ok, maybe a stupid question but what do you guys do to keep your throttle thumb warm? I have noticed the past few rides in very cold temperatures that my throttle thumb is FREEZING! I am geared up with several layers, Timberland Gloves and toasty warm except for my throttle thumb! Any ideas?
  13. geeeyejo1

    Anyone Hear of This Battery

    Was looking for chargers and came across this site and battery. Says assembled (so assumed shipped) from USA. Has 8AWG lead wires and appears to be a high discharge rate (40A cont 60A peak) Seems decent price for 48v13AH. Anyone use these...
  14. geeeyejo1

    Charger for LIFEPO4 & LIPO?

    I am anticipating the cheap plastic 3A charger that came with my 48V15AH LIFEPO4 pack will not last long. Since I am considering LIPO for my next build I was hoping to source a charger that could charge my current 48V15AH LIFEPO4 pack as well as perhaps a 12S or 15S LIPO pack. In looking at...
  15. geeeyejo1

    GREAT Commute This AM!

    This is the third time I have taken my new build to work - really starting to get the feel of things. With a little pedaling I was able to use only 3.28AH for the 5 mile ride. On the West Side Highway bike path in NYC I was able to get her up to 29MPH (flat run not downhill) with pedaling -...
  16. geeeyejo1

    Voltage Sag After Charging?

    Well I believe that my pack has finally balanced - after two discharges of approx 4AH each the pack reached 59V on the charger last night. I disconnected the charger and when I woke early this AM noticed the pack was sitting at 53.7V (I have small voltmeter connected to positive terminal to...
  17. geeeyejo1

    Can I Use Silicon Spray to Lubricate Thumb Throttle

    Thumb throttle sticking in cold today - can I use silicon spray to lubricate?
  18. geeeyejo1

    Can Someone Recommend Charger for LIPO & LIFEPO4?

    For my next build I plan on using LIPO - likely a 12S3p configuration. I just received my Sunthing (Ping like) 48V15AH LIFEPO4 pack and want to get a better charger than the 3A plastic unit that came with the battery. Ideally I would like to get a charger that could be used for both batteries...
  19. geeeyejo1

    Sticky Throttle on First Commute

    Well took my maiden commuting voyage this AM - 14 Degrees F in NJ/NYC - I had the proper gear - Columbia Ski Jacket, multiple layers of performance nylon, nylon longjohns and flannel lined jeans, Snowboarding Helmet and googles - i was actually pretty toasty - even at 25mph. Funny thing, with...
  20. geeeyejo1

    SUCCESS!!! We Have Lift Off! Thanks to ALL!

    I just wanted to thank all of my fellow forum members for your insight and valuable tips in the build of my first Ebike. I just tested my 48V1000W Yescom kit after two months of waiting for my battery. I connected the battery to the controller and thanks to forum Pre-charge resistor tips...
  21. geeeyejo1

    Sunthing28 Battery Review

    Well as per previous post I finally received my 48V15AH LIFEPO4 battery and charger from Sunthing28 on Ebay. Battery was received exactly in time committed by vendor - he said 7-8 weeks -here today just 7.5 weeks after purchase. Battery arrived in a yellow taped cardboard box secured with two...
  22. geeeyejo1

    Attaching Voltmeter to Battery Pack

    I originally purchased this: http://www.ebay.com/itm/170846310527?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 to mount on my handlebars to monitor pack voltage while riding. I subsequently upgraded to a more functional Wattmeter that displays Voltage, AH, Wattage, etc. that is now...
  23. geeeyejo1

    Battery Box Placement

    Once again with time on my hands waiting for my battery; I figured let's see how this would work in the triangle. I took the plastic box that I had acquired (and measured) to put in the rear carrier bag (bad thing I know!) and it appears that it is a real nice fit in the triangle! Figure I...
  24. geeeyejo1

    What is Longest Wait for Battery?UPDATE - IT ARRIVED!!!

    Well it's going on seven weeks now and still no battery or shipping update available on the China Post or USPS site. Sunthing28 did indicate that it would take 7-8 weeks for the sea cargo shipment so I can't really complain, but was hoping that was an outside estimate and that maybe it would...
  25. geeeyejo1

    Installed Pre-Charge Resistor

    Well, I guess waiting for my battery is not necessarily a bad thing - I have the time to "do thing right" and accomplish projects on the bike. I installed my Pre-Charge resistor circuit today. First, I cut the 10g positive wire from the battery lead. I then built the resistor circuit using 12g...
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