Search found 346 matches

by BVH
Nov 28 2020 10:41am
Forum: Battery Technology
Topic: Chargie A - Finally A USB Charge Controller With Phone Programmable Charging Parameters
Replies: 0
Views: 53

Chargie A - Finally A USB Charge Controller With Phone Programmable Charging Parameters

A simple in-line USB A charge controller. Set the parameters you want in the Android (and Apple in the near future) phone ap and then put in-line of the device you want to charge. I've heard that the standard charge Voltage termination is 4.35 on my Galaxy S10. With no Chargie device but with softwa...
by BVH
Aug 28 2020 12:47pm
Forum: Battery Technology
Topic: Cannot get Phaserunner working at all.
Replies: 3
Views: 134

Re: Cannot get Phaserunner working at all.

Not much help but a few years ago, my newer PR died on a ride. The Red LED was always on when the PR was on - either running/in-use and in programming mode. The Red LED stopped working at the same time the PR died.
by BVH
Jul 23 2020 4:44pm
Forum: E-Bike Technical
Topic: First test on DIY ebike running slow and hot
Replies: 42
Views: 1505

Re: First test on DIY ebike running slow and hot

You mention your battery is configured 10S/4P - what is the total Amp hour capacity?
by BVH
Jun 27 2020 10:22am
Forum: Items Wanted
Topic: Prodecotech 48 Volt (51.2V Nominal) 12 Ah LiFeP04 battery - Good or bad Want to buy one
Replies: 19
Views: 2229

Re: Prodecotech 51.2V/12 Ah LiFeP04 battery - Looking to buy a good or bad one

Ever hopeful of finding one. Any condition. Also, the 48 Volt (51.2 Nominal), 9 Amp Hour version would be fine, too.
by BVH
Jun 18 2020 8:30am
Forum: E-Bike Technical
Topic: How to get higher top speed from DD motor
Replies: 16
Views: 380

Re: How to get higher top speed from DD motor

My numbers are similar to yours. I'm ran my Phaserunner max Watts at about 1650 and I got about 28 mph without F.W. I am now using 10 Amps of Field Weakening and now get about 33, maybe 34 mph all other conditions being the same. Does it really matter if it's inefficient if you're only using it for ...
by BVH
May 30 2020 9:49am
Forum: Items Wanted
Topic: Prodecotech 48 Volt (51.2V Nominal) 12 Ah LiFeP04 battery - Good or bad Want to buy one
Replies: 19
Views: 2229

Re: Prodecotech 51.2V/12 Ah LiFeP04 battery - Looking to buy a good or bad one

As the title says, If someone has a good or bad 51.2V, 16S/12 Ah LiFeP04 Prodecotech pack they would sell, I'd be interested in it. They've gone out of business as I understand it. My two are functioning fine but I'd like to prepare to rebuild them as they are 6 years old and I don't want to open on...
by BVH
May 29 2020 10:39am
Forum: Items Wanted
Topic: 10s Hobby charger that works
Replies: 5
Views: 386

Re: 10s Hobby charger that works

And the iCharger 4010
by BVH
May 27 2020 1:47pm
Forum: E-Bike Technical
Topic: Bike Throttle Replacement Search
Replies: 7
Views: 318

Re: Bike Throttle Replacement Search

Timing is everything! I just sent off a bunch of free stuff to member John61ct and I'm pretty sure my old, fully functional Prodecotech thumb throttle with 3-light battery status leds was in the box as I can't find it here and it's not in the trash. You might PM him to see if he has it and will send...
by BVH
May 19 2020 6:11pm
Forum: Battery Technology
Topic: What should I set min discharge voltage for NCR1860GA 14S battery?
Replies: 10
Views: 311

Re: What should I set min discharge voltage for NCR1860GA 14S battery?

42 Volts LVC is 3.0 Volts per cell under load. Should be safe as pack will rebound to maybe 3.2 or 3.3 Volts Per Cell at rest depending on how much of a load you are placing on the cells at the time of LVC. But if it were me, I'd use 44 Volts to be kinder to the cells as long as you're getting the r...
by BVH
May 19 2020 1:23pm
Forum: Items for Sale - Used
Topic: *CLAIMED No Longer Available* New LiFeP04 16S Chargers (2), Barely Used Lyen Controller & Shimano 13-34T Freewheel
Replies: 2
Views: 236

*CLAIMED No Longer Available* New LiFeP04 16S Chargers (2), Barely Used Lyen Controller & Shimano 13-34T Freewheel

Claimed! No longer available. Cleaning out my bike cupboard and I can't bear to toss them in the trash so this entire Lot is almost Free - just pay Large Flat Rate Box USPS shipping cost to any of the 50 States. I don't want to split it up so please don't ask for separate items. If you don't want e...
by BVH
May 14 2020 6:32pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 1205
Views: 176893

Re: kWeld - "Next level" DIY battery spot welder

Here's a mock up of how I balance charge the 2P pack. Not shown, but obvious are the balance board input cables and balance cable which are connected to my FMA Dual PowerLab 8 . https://hosting.photobucket.com/images/y79/BVH/KWeld_batt_charge_setup.jpg?width=1920&height=1080&fit=bounds It ma...
by BVH
May 14 2020 9:41am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 1205
Views: 176893

Re: kWeld - "Next level" DIY battery spot welder

I use the 120 Amp rated Anderson connectors and feed both Negs and Pos into one connector for each pair. Matching connector is on KWeld.

Image
by BVH
May 10 2020 1:09pm
Forum: Battery Technology
Topic: Parallel yes or no
Replies: 5
Views: 289

Re: Parallel yes or no

I added a second, identical battery to my Prodecotech Oasis for longer range with the added benefit of reduced Voltage drop at a given current flow. They are separately key-switched, BMS'd and I charge them separately. After charge, i allow them to reach a differential of about .2 to .3 Volts before...
by BVH
Apr 28 2020 1:50pm
Forum: Battery Technology
Topic: Queen Battery QB26650-2300 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B
Replies: 9
Views: 840

Re: Queen Battery QB26650-2300 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B

OP, let me know if I should delete this and start a thread. Would members be interested in buying small quantities of the 3600 mAh cells if I bring in the min order quantity which will be many more than I need? No markup, just the per cell cost inclu shipping I will have paid plus actual shipping to...
by BVH
Apr 28 2020 11:10am
Forum: Battery Technology
Topic: Queen Battery QB26650-2300 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B
Replies: 9
Views: 840

Re: Queen Battery QB26650-2300 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B

I'd be interested in some of the 3600 mAh cells. Would like to see some test results.
by BVH
Apr 28 2020 10:31am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 1205
Views: 176893

Re: kWeld - "Next level" DIY battery spot welder

To reduce the heating up of the battery, parallel a second, identical battery when welding. You can also aim a small fan at the pack when working. It won't help cable heating though. When a Lipo is at 3.7 Volts per cell - resting, not under load, it is down to about 18-20% capacity remaining. Best n...
by BVH
Apr 23 2020 10:51am
Forum: Battery Technology
Topic: Luna Charger dead after 10 uses.
Replies: 26
Views: 1002

Re: Luna Charger dead after 10 uses.

Hi Mac. Long time, no see over at CPF. I still have my Green body'd, Quad Cyan that I got from you years ago and it's still the best looking light I have.
by BVH
Apr 23 2020 10:44am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 1205
Views: 176893

Re: kWeld - "Next level" DIY battery spot welder

It might trigger overcurrent if you run them in Parallel while calibrating the unit as my 2 Panthers in Parallel did. So calibrate with one, weld with 2. That's what I do with zero problems. This was suggested to me by the builder of the KWeld some time ago.
by BVH
Apr 23 2020 10:05am
Forum: Battery Technology
Topic: Battery welding issues
Replies: 5
Views: 411

Re: Battery welding issues

I had a Sunko and was very disappointed in it's performance. After looking at the JP and KWeld here on ES, I went with the KWeld and am extremely happy with it. After the first use of the KWeld, I decided that the Sunko's are junk.