Batteries

As batteries age they begin to 'sag'. With good ones, they hold power on a plateau that just trails a bit at the very end. When they are old they begin to drop after half a charge.
 
Right. It's made in China so better to throw it away is a much better answer. Weird the person claiming I don't have knowledge thinks 48v/13s packs stop charging at 45 volt because it's made in China.🤣No worries I will delete my account and leave it to you geniuses
 
James340 said:
Weird the person claiming I don't have knowledge thinks 48v/13s packs stop charging at 45 volt because it's made in China.
Click to expand...
I'm sorry grasshopper, no one claimed you don't have knowledge, we do know the battery and maker. Enough to know it's best to call it a good run, which you also eventually suggested. Don't be butt hurt. Unlike endless_sphere, this forum tends to be beginners and don't have the tools or knowledge mess with battery repair.
 
tomjasz said:
No not worth the risk for anyone new to battery repair and I'd say you got your monies worth. It's probably a Unit Pack Power battery. A bottom of the line build. Anyone suggesting balancing without demonstrating their skill set should not be trusted given the risks.

that's not always the case. It's a pack with lower quality generic Chinese cells from a company known for failures. Someone published data and warnings about that pack.

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View attachment 192674
The Consumer Product Safety Commission (CPSC) has issued a warning and recall for Unit Pack Power (UPP) e-bike batteries due to fire and burn hazards. These batteries, often sold as "U004 BATTERY" or "UPPBATTERY" and rebranded as "Unit Pack Power" or "UPP", have been linked to multiple reports of fires, including one where a battery exploded causing fire damage. The CPSC urges consumers to stop using these batteries and dispose of them properly.

Specifically, the warning applies to the following:
  • Model U004 and U004-1: These are the specific model numbers being recalled.

  • "Unit Pack Power" or "UPP" Brand: These batteries were sold under these brand names online and at certain retailers.

  • Black, triangular batteries: They are typically sold as conversion kits to turn pedal bikes into e-bikes.
What you should do if you own an UPP battery:
  • Immediately stop using the battery. .

  • Dispose of the battery properly. Follow the guidelines of your local recycling center for damaged/defective/recalled lithium batteries. Do not throw them in the trash or general recycling bins.

  • Contact the seller or the manufacturer: to inquire about a refund or replacement.

  • Report any incidents: involving these batteries to the CPSC at www.SaferProducts.gov.
Why the warning?
  • Lack of safety certifications:
    The UPP batteries have not been certified by an accredited laboratory to the applicable UL safety standards.

  • Reports of fires and explosions:
    Multiple reports have linked these batteries to fires, burns, and property damage.

  • Manufacturer's refusal to cooperate:
    The CPSC notes that the UPP manufacturer has refused to conduct an acceptable recall.
In summary, the CPSC strongly advises against using these UPP e-bike batteries due to the risk of fire and burn hazards, and urges immediate action to stop using and properly dispose of these batteries.
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Tom,
I was saddened to hear that Cali batteries have such a bad reputation . He specifically states that the cells in his batteries are the same as used in Tesla batteries . We live and learn. But that is water under the bridge . I will just recycle . I want to thank everyone for they're input . I am digitally challenged , but I hope that though this is responding to your post , that anyone following the thread will see that I appreciate all of the input . Thank you all .
 
Gorden said:
He specifically states that the cells in his batteries are the same as used in Tesla batteries
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Several sellers do the same and it's almost true, when pinned down they will say the are all 18650, same size and maybe the same chemistry. In fairness he has stood behind his battries, and as others have confirmed 900 cycles for the price was pretty darn good. The maker of that brand is usually not very good about honoring their warranty. We lost lots of dollars standing tall and honoring the warranty, and nothing from UPP
 
Gorden said:
Tom,
I was saddened to hear that Cali batteries have such a bad reputation . He specifically states that the cells in his batteries are the same as used in Tesla batteries . We live and learn. But that is water under the bridge . I will just recycle . I want to thank everyone for they're input . I am digitally challenged , but I hope that though this is responding to your post , that anyone following the thread will see that I appreciate all of the input . Thank you all .
Click to expand...
Is this your new battery?
https://calibike.com/product/electr...ium-li-ion-battery-and-charger-1-yr-warranty/

I breezed by the website and they state that their 52v 20ah battery uses Panasonic 21700 cells. So I do belive Tesla does use Panasonic cells. Though there's probably multiple variations.
That said at 52v- 20Ah that battery should be a beast and adequate. Do you know how many Ah the 48v one was?
What motor are you running? Do you know the watts? Same for the controller.. Specs?
 
Those chains turned out nicely.
1745790046195.jpeg
 
Gionnirocket said:
Is this your new battery?
https://calibike.com/product/electr...ium-li-ion-battery-and-charger-1-yr-warranty/

I breezed by the website and they state that their 52v 20ah battery uses Panasonic 21700 cells. So I do belive Tesla does use Panasonic cells. Though there's probably multiple variations.
That said at 52v- 20Ah that battery should be a beast and adequate. Do you know how many Ah the 48v one was?
What motor are you running? Do you know the watts? Same for the controller.. Specs?
Click to expand...
Do not know the amp hours for the old battery. The motor is a Voila 48 volt , do not know the watts . I will look it up. They still sell that motor. Controller is 48 volt 35 amp 1500 watts I have bought a new controller , not here yet . It is 48-72 volt 45 amp 2000 watt , also a Voila . I have another post detailing that purchase.
I also have a new post showing my current bike . I have become a posting fool .
 
Gorden said:
Do not know the amp hours for the old battery. The motor is a Voila 48 volt , do not know the watts . I will look it up. They still sell that motor. Controller is 48 volt 35 amp 1500 watts I have bought a new controller , not here yet . It is 48-72 volt 45 amp 2000 watt , also a Voila . I have another post detailing that purchase.
I also have a new post showing my current bike . I have become a posting fool .
Click to expand...
Yes that my new battery.
 
Gorden said:
Yes that my new battery.
Click to expand...
One big key is to look at the sticker on the bottom of the battery, another is to look at the sticker on the charger. Charger output values are always higher than battery capacities. Just as it takes a pump more pressure to pump up while pushing down than the final pressure in a tube. Almost by 30% more. You need about 100 pounds of pressure down to pump up a 70 pound tube.
 
PedalUma said:
One big key is to look at the sticker on the bottom of the battery, another is to look at the sticker on the charger. Charger output values are always higher than battery capacities. Just as it takes a pump more pressure to pump up while pushing down than the final pressure in a tube. Almost by 30% more. You need about 100 pounds of pressure down to pump up a 70 pound tube.
Click to expand...
makes sense
 
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