Search found 51 matches

by ngant17
Mar 27 2019 7:27am
Forum: E-Bike General Discussion
Topic: Saved by thumb throttle
Replies: 8
Views: 352

Re: Saved by thumb throttle

Don't forget the new crank arm. There's nothing you can do for the one that fell off. For what it's worth, you can feel the crank wiggling for a while before it goes off on its own. But if it wiggled around much, you'll still need to replace it. Purple Loctite is the low strength kind. When mine ca...
by ngant17
Mar 25 2019 9:20pm
Forum: E-Bike General Discussion
Topic: Saved by thumb throttle
Replies: 8
Views: 352

Re: Saved by thumb throttle

Yes we're talking about the crank bolt. Actually now that I'm relaxed, I have to say that it was the left bolt not the right, I just came home partially frustrated and realized I got that mixed up. Can't change the square taper as it's Bafang. As for Locktite, I understand the red requires heat to d...
by ngant17
Mar 25 2019 7:15pm
Forum: E-Bike General Discussion
Topic: Saved by thumb throttle
Replies: 8
Views: 352

Saved by thumb throttle

Today I just had the rather frustrating experience of losing the metric M8 allen bolt that secures right foot pedal to Bafang BBS02 crank arm. My pedal suddenly dropped to the ground and I had no luck finding the original bolt. However return trip was no problem riding on full throttle with just my ...
by ngant17
Mar 24 2019 8:13am
Forum: Battery Technology
Topic: Echo 58v and Greenworks 60v in parallel
Replies: 7
Views: 332

Re: Echo 58v and Greenworks 60v in parallel

Dewalt Flexvolt batteries are 20v/60v, 6ah on lower volts, so that is just 1/3 of amp-hours for my ebike needs. Price is typical for a 60v/2ah pack. So as not to reinvent a wheel, I refer the reader to Ron/spinningmagnets, May 2017 article, who IMHO basically wrote the bible on the subject in electr...
by ngant17
Mar 23 2019 6:35pm
Forum: Battery Technology
Topic: Echo 58v and Greenworks 60v in parallel
Replies: 7
Views: 332

Re: Echo 58v and Greenworks 60v in parallel

I've developed a healthy respect for 60v, battery building isn't for me. So that's a reason why I gravitate towards these 2 brands, 58v Echo & 60v Greenworks. Lots of horsepower as long,as you don't exceed 61.5v feeding Bafang BBS02 motor and display/controller. I've noticed with my new setup, dual ...
by ngant17
Mar 20 2019 6:16pm
Forum: Battery Technology
Topic: Echo 58v and Greenworks 60v in parallel
Replies: 7
Views: 332

Re: Echo 58v and Greenworks 60v in parallel

I only need to find the time for voltage drop of a fully-charged Greenworks 60v 4ah battery in parallel with the Echo 58v. I'm guessing it will only be a few minutes. From my personal experience, the Bafang C961 display computer will barely tolerate 61volts but anything more and it will shut down fr...
by ngant17
Mar 20 2019 9:41am
Forum: Battery Technology
Topic: Echo 58v and Greenworks 60v in parallel
Replies: 7
Views: 332

Echo 58v and Greenworks 60v in parallel

My original problem with my e-bike was with a fully-charged Greenworks 60v battery It will have +62v after charging, which is enough over-voltage to shut down the stock Bafang C961 display computer that controls the 48v BBS02 motor. Fortunately Bafang has built in over-voltage protection but I want ...
by ngant17
Mar 10 2019 7:38pm
Forum: E-Bike General Discussion
Topic: Advice on motor/conversion kit for first timer.
Replies: 13
Views: 617

Re: Advice on motor/conversion kit for first timer.

The e-bike "gas tank" is your amp-hours. Someone can correct me if I'm wrong, but 750watts by itself doesn't reveal much unless you know the voltage first. Wattage is power but that doesn't really tell me how far I can go, just by using watts. I know most everyone uses watts as the metric (voltage ...
by ngant17
Mar 08 2019 7:28pm
Forum: Battery Technology
Topic: Echo Tools 58V 4ah Batteries
Replies: 82
Views: 16627

Re: Echo Tools 58V 4ah Batteries

In my recent threads wrt Greenworks 60v batteries, I think the following comment's by flippy is applicable: ------------------------------------------------------------------------------------------ Re: Greenworks 60v rebuild by flippy » Mar 06 2019 2:11am sorry, but that is very dangergous idea, es...
by ngant17
Mar 07 2019 8:11pm
Forum: Battery Technology
Topic: jump starting caveat - Warning!
Replies: 16
Views: 576

Re: jump starting caveat - Warning!

ok, You've successfully clue'd me in to this battery rebuild business. No more quick fixes with my 60v 4aH dead batteries. Thanx for all comments. This 60v 4aH paperweight goes to Li Ion recycling bin. Will continue to purchase 60v 4aH batteries for business and pleasure, with tax deduction. Have no...
by ngant17
Mar 07 2019 3:35pm
Forum: Battery Technology
Topic: jump starting caveat - Warning!
Replies: 16
Views: 576

Re: jump starting caveat - Warning!

Just received a $96 rebuilt 60v 4aH Greenworks battery today. Will do the standard torture test on my mower/weedeater/blower to make sure it is a keeper. Also to count it as a legitimate tax deduction since it's primarily used for business. Don’t know how the factory in North Carolina can ship these...
by ngant17
Mar 07 2019 10:44am
Forum: Battery Technology
Topic: jump starting caveat - Warning!
Replies: 16
Views: 576

Re: jump starting caveat - Warning!

Got this dangerous quick fix on someone's YouTube channel. Seems to be repeated by others on YouTube. Well, if I saw it on YouTube, it's gotta be true, right. By this so-called "jump starting" technique, that is connecting a dead Li-ion battery to a good Li-ion battery to try and resurrect the dead,...
by ngant17
Mar 06 2019 8:50pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

That sounds like the winning argument. If Luna Cycle is a good metric, and that is as good quality as anything, the 60v Triangle 24ah Panasonics are $850, which is a little hard on my budget. So yes, you can say that being pennywise and pound foolish. In the future, I'm hoping I won't have to depend...
by ngant17
Mar 06 2019 2:44pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

Cheapest off the shelf option for me is the battery switches used on RVs and boats to manage multiple batteries. Experience will be best teacher in long run but I'm definitely listening carefully to advice from battery pros here. So you're saying running on a single 60v 4aH battery at a time , and s...
by ngant17
Mar 06 2019 9:39am
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

OK got that. Can this issue be addressed by dropping in diodes or relays? Such as using a battery isolator or dual/triple isolator switch? I'm looking at some marine battery isolator switches on Amazon that look useful. Something like a single-pole, triple-throw switch, Battery One, Battery Two, or ...
by ngant17
Mar 06 2019 9:31am
Forum: Battery Technology
Topic: jump starting caveat - Warning!
Replies: 16
Views: 576

jump starting caveat - Warning!

Jump starting dead 60v lithium ion batteries. Caveat. Please note. I just want to put out a warning for anyone trying to do a 'jump-start' trick to revive a dead lithium ion battery. I just tried out that technique to try on my 60v 4ah Greenworks battery. Although it seemed to be relatively harmless...
by ngant17
Mar 05 2019 8:55pm
Forum: E-Bike General Discussion
Topic: Advice on motor/conversion kit for first timer.
Replies: 13
Views: 617

Re: Advice on motor/conversion kit for first timer.

I got into my first e-bike with Bafang BBS-02. Very happy with long term(+ 1yr.) Bafang use so far. So much depends on your mechanical inclinations, abilities and available resources. The e-bike "gas tank" is your amp-hours. Someone can correct me if I'm wrong, but 750watts by itself doesn't reveal ...
by ngant17
Mar 05 2019 7:14pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

I've took the plunge and ordered a rebuilt 60v Greenworks and a 'reconditioned' 58v Echo to get my e-bike up to an amp-hour level (i.e., 'gas tank' size) that I want to travel on current ride. Unlikely that I'll be able to use Echo equipment to interchange with Greenworks equipment on job sites. I h...
by ngant17
Mar 04 2019 8:54pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

Reviewing the earlier 2015 posts on the Echo 58v 4ah batteries, I didn't realize they were available 4 years ago. In any case, it is obvious that I am returning back to some original ideas: using existing off-the-shelf, plug n' play batteries for cheaper and good quality power sources to run an e-bi...
by ngant17
Mar 04 2019 6:45am
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

I should note that if you buy locally at hardware stores, paying $40 per amp-hour for the larger voltages needed on an ebike is not a bad idea as you generally will get a no-hassle return and decent warranty. For example, the ECHO 4 Ah 58v battery new comes with 90-day money-back guarantee, a 5-year...
by ngant17
Mar 03 2019 7:52pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

Until I can get competence with battery rebuilds, as of March 2019, it looks like the 60v 4ah Greenworks rebuilt ones give me the best deal. I've been running for over a year with the rebuilt 60v one I currently have: Greenworks 60v 4 amp-hour battery, rebuilt - $96.85 (amazon and ebay). That's $24 ...
by ngant17
Mar 01 2019 9:15pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Re: Greenworks 60v rebuild

Yes, you're correct on charged voltages. I checked my notes from 2018 thread, and noted that a fully charged 60v 4Ah Greenworks batteries will have +64v. Which will automatically shut down the 48v Bafang controller, so my DROK buck converter is a mandatory item in the system. There is a vendor on eb...
by ngant17
Mar 01 2019 8:50pm
Forum: E-Bike Technical
Topic: Bafang BBS02, DROK and 60 volts
Replies: 4
Views: 730

Re: Bafang BBS02, DROK and 60 volts

Here's my philosophy on multiple 60v batteries and overvoltages with the Bafang BBS02 and the Greenworks 60v battery. If some lithium-ion cells do go bad, and you can expect some degradation of cells in time, dropping down a few volts from 60v won't significantly slow down a 48v e-bike. Although the...
by ngant17
Mar 01 2019 6:28pm
Forum: Battery Technology
Topic: Greenworks 60v rebuild
Replies: 13
Views: 528

Greenworks 60v rebuild

Opened up a Greenworks 60v battery that I use on my e-bike. After getting past the T8 torx security screws (hint: pound down the tiny internal pin with hard whacks from a punch, then use a normal T8 bit): Internals seem to show the following: Panasonic UIG95GD cells(sp.?), 6x5 array w/ 60v nominal b...
by ngant17
Dec 20 2018 10:11am
Forum: Forum Rules and Features
Topic: The future of our forum - facebook versus web forums
Replies: 60
Views: 4718

Re: The future of our forum - facebook versus web forums

To bring up that ungodly social media platform, well my dear, no one has linked "In Your Facebook" articles by Dave Emory. Or did I miss a thread? I humbly reference this at his website: https://spitfirelist.com/for-the-record/ftr-1021-fascisbook-in-your-facebook-part-3-a-virtual-panopticon-part-3/ ...