Bad battery or safety feature?

Stepping in a little late here. Glad to hear you have the bike up and running, and further, had the guts to open the battery up for a look see. That's a teaching moment if there ever was one!

I've been in radio control for just about forever. We use batteries with similar chemistry to what is used in the bikes, and I did have one try to light up the back of a garbage truck when I just tossed it in a trash can a few years ago. NOW, after looking into how others were handling this issue, I found that storing them in a bucket full of water for a few weeks prior to disposal will neutralize them to the point where fires are no longer an issue. I use a 5 gal. plastic bucket placed under the drip edge of a shed so rain water will keep it topped off. Water WILL get sorta colorful, and God only knows how lethal it might be, so putting a screen over it to keep pets out might be a good plan. FWIW
Smh...
Ever think of contacting your local municipality... I'd almost guarantee you can drop them off somewhere convenient. I know that I can.
fwiw... even Home Depot accepts all batteries up to 300Wh
 
Smh...
Ever think of contacting your local municipality... I'd almost guarantee you can drop them off somewhere convenient. I know that I can.
fwiw... even Home Depot accepts all batteries up to 300Wh
Difficult to get rid of paint cans here....
 
Yes, Mine looks just like that but is made by Venzo. I think the price wa $60.00 and well worth it. Very adjustable for different weights. Well made product with good steel from Taiwan, not China. I do shoot wd40 on it every 10 rides or so to stop any small squeaks. That along with a big gel seat makes for a great ride. The Seagull has 27.2" seat post diameter so order that size. My girlfriend has another brand on hers and loves it. They make a huge difference in the ride. My saddle is Cloud 9.
 
Last edited:
As for the bad battery, and getting rid of them, when the one I now have starts to fail, rather then throw it away, I plan on shipping it to San Diego to be rebuilt using Samsung parts. FTH Power is where a lot of people get their bike batteries made new again. They send you the special legal shipping bag to use. All you do is call UPS to come get it. It's all covered in the price of the rebuild which is half that of a new one.
 
I just got word from FTH.
$45 diagnostic fee but it gets credited if you get repair
They have a haz mat package, $65 shipped to them but not shipped back
$160 for repair plus parts
Almost better off just getting new battery.
 
I just got word from FTH.
$45 diagnostic fee but it gets credited if you get repair
They have a haz mat package, $65 shipped to them but not shipped back
$160 for repair plus parts
Almost better off just getting new battery.
It does? The new one is $450.00 and the rebuilt would be somewhere under $250.00. So you save $200.00 or more and end up with a battery built with LG and Samsung parts instead of another Chinese battery with problems. To me, the choice is obvious. I've had ebikers tell me good things about this company. They do good work.
 
It does? The new one is $450.00 and the rebuilt would be somewhere under $250.00. So you save $200.00 or more and end up with a battery built with LG and Samsung parts instead of another Chinese battery with problems. To me, the choice is obvious. I've had ebikers tell me good things about this company. They do good work.
I don't know what shipping would be back to me or what the repair costs are
$250 is minimum cost.
The battery I bought on amazon was $399
 
I don't know what shipping would be back to me or what the repair costs are
$250 is minimum cost.
The battery I bought on amazo
I don't know what shipping would be back to me or what the repair costs are
$250 is minimum cost.
The battery I bought on amazon was $399
The total shipping charge is $65.00. They send you the insulated package and you call UPS. No more charge from you. They pay the shipping back to you. So, to me, to get my current battery rebuilt with high quality Samsung parts is well worth it. I mean why pay an extra $200.00 for Chinese junk? Korean electronics is way better than China. But, if your good with the one you got, great. Hope it holds up. What I learned is that it pays to get the extended warranty on any new ebike.
 
I tried once more to show Ecotric the poor workmanship of their battery and no reply
Good thing is my vacation neighbor here in AZ is only a couple miles from FTH. He can bring the battery there and save the shipping hassle
Curious to see what they say
 
I tried once more to show Ecotric the poor workmanship of their battery and no reply
Good thing is my vacation neighbor here in AZ is only a couple miles from FTH. He can bring the battery there and save the shipping hassle
Curious to see what they say
I had people in my bike group tell me they do good work, so, like anything else it's a gamble. Good part is they give a 1 year warranty on the work and the reviews are mostly good. Let us know what you find out.
 
I decided to open up the old battery to see if there's anything obvious.
Sure enough! Poor workmanship killed this battery.
Broken wire on the main switch and a chaffed wire where the screw holds the case together at the bottom.
That's probably why it was surging until it died and i would get random voltage readings
Now it won't charge.
Oh well, new battery works good.
View attachment 127080
Did you solder the wire back onto the switch and tape up the scuffed up wire? Seems like that would get you a spare battery,
.
My repaired Ecotric pack was dead when I went to use it last summer. A second bank of cells had drained to zero over the winter. I'm sure there were others reaching their end-of-life soon. No further repair attemped, Now I know that if I want to repair a battery, if any cells need replacement, all should be replaced like FTH does it.
.
I gave the Ecotric to my son and he has a good time with it, For the $700 I paid for the fat tire folding 20" model, it seemed decent. There were some cheap things like the heavy tires/tubes and steel rims. It came with Textro MD300 disk brakes, which are pretty good.
.
I could have aggravated the battery issue myself when I hooked up a DC booster and ran the bike on 60V out of the 36V battery, It was pulling currents that it was never intended to pull. It's running on the UPP replacement battery,
 
Ecotric makes good solid ebikes but they keep the price down with cheap, may pop any minute now, tires and batteries that may or may not survive the 1 year warranty. Mine died 6 months out. 0 amps on tester. They sent me a new one. I threw out the old one. Should have kept it, had FTH Power rebuild it for a backup or to take on long bike rides. This battery has worked great for 2 years now. I only ride in good weather. Never over 90. Heat wrecks these batteries.
 
Ecotric makes good solid ebikes but they keep the price down with cheap, may pop any minute now, tires and batteries that may or may not survive the 1 year warranty. Mine died 6 months out. 0 amps on tester. They sent me a new one. I threw out the old one. Should have kept it, had FTH Power rebuild it for a backup or to take on long bike rides. This battery has worked great for 2 years now. I only ride in good weather. Never over 90. Heat wrecks these batteries.
You can ride above 90°as that is well within specifications... just don't park it in the sun when making stops. Airflow will keep it cool enough while moving.
 
You can ride above 90°as that is well within specifications... just don't park it in the sun when making stops. Airflow will keep it cool enough while moving.
You can ride in 90+ temps if you want, but it heats up the cells and shortens the life of the battery. Lithium bike batteries run the best and last longer if kept between 60 and 80 F. That's their happy zone.
 
You can ride in 90+ temps if you want, but it heats up the cells and shortens the life of the battery. Lithium bike batteries run the best and last longer if kept between 60 and 80 F. That's their happy zone.
So folks that live in areas where temps commonly exceed 80f should park their bikes when it gets that warm?

-OR-

Does that come under the heading of ya gotta do what ya gotta do heading?
 
You can ride in 90+ temps if you want, but it heats up the cells and shortens the life of the battery. Lithium bike batteries run the best and last longer if kept between 60 and 80 F. That's their happy zone.
I guess you can be that cautious if you want but just about all major brand cells are rated with a discharge operating temperature above 125°f and typically closer to 140°... so 90° is more than safe and with negligible negative impact.
At what point do you want to enjoy your toy?
 
So folks that live in areas where temps commonly exceed 80f should park their bikes when it gets that warm?

-OR-

Does that come under the heading of ya gotta do what ya gotta do heading?
I never said it would blow it up, it just won't run as well or last as long running it every day in 90+ weather. I run mine on those hot days too somtimes but try to not be out there any more than needed just to get it home. I personally don't like riding for hours when it goes over 90 anyway so it works good for me. It's just a fact that Lithium bike batteries operate best and live longer if ridden in temps from 60-90. That's spending hours riding not small 20 minute trips to the store. I just try to keep my bike battery cool and happy. It's 1000w. of some great fun and I'm not looking to rebuild or replace the battery too soon. Had my first one die on me and peddling a 70lb. bike home, uphill, sucks.
 
I never said it would blow it up, it just won't run as well or last as long running it every day in 90+ weather. I run mine on those hot days too somtimes but try to not be out there any more than needed just to get it home. I personally don't like riding for hours when it goes over 90 anyway so it works good for me. It's just a fact that Lithium bike batteries operate best and live longer if ridden in temps from 60-90. That's spending hours riding not small 20 minute trips to the store. I just try to keep my bike battery cool and happy. It's 1000w. of some great fun and I'm not looking to rebuild or replace the battery too soon. Had my first one die on me and peddling a 70lb. bike home, uphill, sucks.
I think it safe to say we all want to keep out batteries as happy as possible, but there are limits. The key is to learn and abide by a list of battery "best practices", ones designed to keep a battery functioning as long as possible. This includes the occasional "you gotta do what you gotta do".

You can ride in 90+ temps if you want, but it heats up the cells and shortens the life of the battery. Lithium bike batteries run the best and last longer if kept between 60 and 80 F. That's their happy zone.
This sounds a little like fear mongering. Maybe not the way you intended it, but certainly the way I understood it. I would think the bigger thing to keep in mind on 90f days, would be to keep it out of the sun. Don't park the bike where the sun is going to be beating on it all day while you are at work. You should throw a paper over it or something, doing whatever you can to keep it out of direct sunlight. That done, go ahead and ride it home, without fear you're abusing it in any way....
 
I think it safe to say we all want to keep out batteries as happy as possible, but there are limits. The key is to learn and abide by a list of battery "best practices", ones designed to keep a battery functioning as long as possible. This includes the occasional "you gotta do what you gotta do".


This sounds a little like fear mongering. Maybe not the way you intended it, but certainly the way I understood it. I would think the bigger thing to keep in mind on 90f days, would be to keep it out of the sun. Don't park the bike where the sun is going to be beating on it all day while you are at work. You should throw a paper over it or something, doing whatever you can to keep it out of direct sunlight. That done, go ahead and ride it home, without fear you're abusing it in any way....
Not "fear mongering". Just passing along truthful battery info. Take it or not. I wish these expensive components were built tougher and lasted longer, and someday, real soon, they will be. Battery technology is moving fast. But for now the 60/90 rule is the best option for making them run at 100% and last as long as possible. Just trying to avoid a $500.00 replacement every 2 years. I would think that covered up with a small insulted blanket under a hot sun would be ok on those scorching days. Maybe use a sun reflector like on a car dash only smaller. And short rides home no problem. I'm talking about riding for hours in high 90+ heat being a problem.
 
Back