Juiced Riders a Better Battery than a Ping?

[Puppyjump]

I'm in the market for a battery for an electric bike project. I would normally buy a Ping 48V 20AH battery, but I may have found a better one made by Juiced Riders:

http://www.juicedriders.com/batteries-chargers/
http://cgi.ebay.com/48V-15Ah-LiFePO...in_0?hash=item1c0c4b6ace&_trksid=p3911.c0.m14

What I like on these batteries is the higher rated amperage discharge ratings compared to Ping's, and I can live with the lower AH rating of 15 vs. 20. This battery has 75A max discharge current limited to 45A by BMS and if I remember right the Ping 48V 20AH battery is rated 40A max.

It looks like the Juiced Riders have been assembled in the US, but no idea what kind of LiFePO4 cells they have.

One problem for me is the battery pack is 12.2" long whereas my battery box is only 11.9" long, but the BMS appears to be end-mounted, so I may be able to relocate the BMS to sit on top of the pack like Ping's does.

Anybody have an opinion or direct experience with these Juiced Riders batteries?

 

[Lock]

Anybody have an opinion or direct experience with these Juiced Riders batteries?

From that ebay listing:
"Cycle Life: 0.2C to 85% of Orignial 2000 Cycles"

A discharge rate of only 0.2C seems unrealistic/low. Not sure but I believe other suppliers "forecast" their remaining capacities at 2000 or whatever cycles based on higher discharge rates.

Hope to hear other opinions on this
tks
Lock

 

[Puppyjump]

Anybody have an opinion or direct experience with these Juiced Riders batteries?

From that ebay listing:
"Cycle Life: 0.2C to 85% of Orignial 2000 Cycles"

A discharge rate of only 0.2C seems unrealistic/low. Not sure but I believe other suppliers "forecast" their remaining capacities at 2000 or whatever cycles based on higher discharge rates.

Hope to hear other opinions on this
tks
Lock

I missed that .2C drain rate spec. That's way too low for our applications as our drain rate is 1C or even 2C. Now I'm wondering how Ping rates his batteries, but I suspect he is more accurate by using a more realistic drain rate value.

 

[dogman dan]

Assembled in the US. :lol: :lol: :lol: .

Pings cycle life tests are for 1c discharge, but most of ya are discharging between 1.5 and 2c. Not sure if a higer bms cutoff on a similar pouch cell is a good thing. I wouldn't run the current types of pouch cells at 3 c myself.

Looks like a good price on a similar battery to pings, and CS would be US based where pings isn't. That's a plus right there. I'd say that 48v 15 ah pack is a perfect match for motors with controllers up to 30 amps.

 

[swbluto]

Assembled in the US. :lol: :lol: :lol:

They might attach the BMS to the battery in the U.S. so it'd clearly be assembled in the US. Given that it's obvious they have Chinese suppliers, the majority might actually be assembled there, but just an US presence would be significantly beneficial. Since they're based in San Diego, it shouldn't be hard at all getting some ES member getting in contact with them (And, hopefully do some testing.).

 

[dogman dan]

Well, yeah, they could be getting the pouches from china and assembling the pack here. Definitely better for US buyers if CS is based in the US.

I just got a giggle out of that, because all the assembly jobs exported from the US to maquiladoras in Juarez have now been exported again to asia. I guess 5 bucks a day was too much to pay the workers. Hard to imagine anything other than a plate of food assembled in the US nowdays unless the company is forced to do it.

 

[Kiwi]

Ping now sells 3c packs. EG. 20ah puts out 60amp cont, 100amp peak. You just have to ask him. A 36v 20 is $598 US.