Search found 354 matches

by BVH
Jan 27 2021 11:08am
Forum: Items Wanted
Topic: Prodecotech 48 Volt (51.2V Nominal) 12 Ah LiFeP04 battery - Good or bad Want to buy one
Replies: 24
Views: 2520

Re: Prodecotech 48 Volt (51.2V Nominal) 12 Ah LiFeP04 battery - Good or bad Want to buy one

Yes, it does need to specific. It slides into the Prodecotech rack with integrated key switch and I want to end up with a 3rd battery so I want one I can rebuild. My two units are still working fine so I am in no rush.
by BVH
Jan 02 2021 12:34pm
Forum: Battery Technology
Topic: "Fireproof" blanket?
Replies: 9
Views: 1260

Re: "Fireproof" blanket?

There's a few smaller sizes but here's the big one:

https://www.amazon.com/thickness-Weldin ... 305&sr=8-7
by BVH
Jan 02 2021 12:29pm
Forum: Battery Technology
Topic: Lead Acid JumpStart + Laptop Battery
Replies: 47
Views: 536

Re: Lead Acid JumpStart + Laptop Battery

The inherent problem with all the Lithium Ion pouch cell starters is a Catch-22 - You want them fully charged at all times so they are ready to jump, but keeping them fully charged kills the cells in a short period of time. I had 3 different Anti-Gravity units (genuine) including the heavy duty truc...
by BVH
Dec 30 2020 6:59pm
Forum: Battery Technology
Topic: "Fireproof" blanket?
Replies: 9
Views: 1260

Re: "Fireproof" blanket?

Look at the specs for the Hansway carbon fiber welding blankets - good for up to 1800 degrees.
by BVH
Dec 20 2020 10:55am
Forum: Battery Technology
Topic: Parallel batteries
Replies: 3
Views: 258

Re: Parallel batteries

Short and simple answer is yes. There can be very small differences in load sharing depending on pack resistance and maybe some other factors but yes, they equally or nearly equally share the load if they are both the same manufactured battery.
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: 147

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: 173

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: EBike Technical
Topic: First test on DIY ebike running slow and hot
Replies: 42
Views: 1528

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: 24
Views: 2520

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: EBike Technical
Topic: How to get higher top speed from DD motor
Replies: 16
Views: 412

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: 24
Views: 2520

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: 414

Re: 10s Hobby charger that works

And the iCharger 4010
by BVH
May 27 2020 1:47pm
Forum: EBike Technical
Topic: Bike Throttle Replacement Search
Replies: 7
Views: 334

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: 330

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: 247

*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: 1288
Views: 192478

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: 1288
Views: 192478

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: 333

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...