Recent content by mysurveymail

Here is a better photo. Yes the previous photos were not rotated and shown side by side. Here you are: You should be able to tell that the polarity is opposite. Not shown is also the charging port and key switch are on the opposite side than my original battery. I made it work, and did a 20...

Hello here are the photos I promised. The first is my old battery. This is my new battery. The only terminals I read any voltage on have probe wires inserted. The ride with the new battery was 20 miles. Pretty flat Florida terrain. Pedaling but full throttle and PAS. The simple battery...

Hello, Thanks for your reply and query. I just tested the "new" battery on a 20 mile PAS ride. When I detached the battery I was only able to measure any voltage on the "outer" + and - slots... as shown here. The "inner" + and - slots read zero volts. Any Idea what they may be for? Just the...

Thanks. I missed my ride today so I will try again tomorrow. Also photos.

No I am not sure. The battery just has + + - - whereas my old battery just has + - They both show full battery voltage. The "new" battery did come off a 400W bike, and is being installed onto my 250W prodecotech "townie." I am going for a 6 mile short ride later today and will check voltage...

Thank you that makes perfect sense. Since this 36v battery came from a 400w bike, and is now being out onto my 250w "townie" I will sleep a little better. However the previous owner had a dullard do the last battery swap and just flattened a positive and negative spade connector and jammed it...

my real concern was that BOTH positives were needed, and BOTH negatives needed, instead of just the 2 on the bike controller. Thinking that maybe each of the positive slots and each of the negative slots, would drop the battery capacity to half by only utilizing 2 instead 4. Anyone know what I...

Hello, I need an answer ASAP. I am attempting to switch to a "new 4 prong battery" from "2 prong battery." The old battery is a "silverfish" design that is vertical just behind the seat tube, 36V 10ah with a positive and negative female connector. A friend wants to sell me a "new" battery of...

They make plastic ammo boxes with an o-ring. Walmart sells at least one or two sizes. Plastics are better for electronics... IMHO I tired to learn everything about battery building here and on YouTube. I thought matching capacity for my application was best. Plus I only draw 20 amps, so I...

I "finished" my first 10s10p battery using vruzend 1.5 kit The longest part of all was that getting my cell count up to 100 used cells from laptops took forever. I started with over 200 18650 batteries. I used 2 4 slot "zanflare" chargers to do a "fast test" on all my cells. This meant a...

I "finished" my first 10s10p battery using vruzend 1.5 kit. The longest part of all was that getting my cell count up to 100 used cells from laptops took forever. I started with over 200 18650 batteries. I used 2 4 slot "zanflare" chargers to do a "fast test" on all my cells. This meant a...

Thanks 999zip999, I plan on using a bulk charger once my battery is built 100 batteries at 500mA per cell less if I goto a 15p battery, but only to 4vdc. Then after some bench testing with resistive loads (3 car headlights wired in series) and a shunt style amp meter, I will then test each...

Thanks for the information y'all, spinngmagnets , john61ct , and docw009 thanks. I think after all this I will still not use the buss bars in parallel supplied with the vruzend kit. Unless gives me a compelling reason to do so. I am using tested, but recycled laptop cells of verying age and...

Thank you for your reply. Maybe I misspoke. My hub motor is 750W and my controller is 36V rated I am sure to at least 25A. My question is what gauge wire to use in my 10s10p 18650 for the parallel connections? I would rather have a fuse wire instead of the bus bars that are included with the...

Thanks "Spinningmagnets" the posts you've made here on ES have been grounded in science, insightful, and have given others some real meaningful answers. I have seen the youtube videos you referred, which is why I brought my questions here to ES. My hope is that once I finish individually smart...