Hello! We have taken note of this great resource of a site, and wanted to lend a hand. If anyone has any questions for us we'd love a chance to answer then here for you and anyone else who may be pondering the same thing.
Hey kauaikit, I'm interested to hear how you did the "reverse charge" to fix the battery when you first bought it? Could you just do that again to restore life or was that a one time thing? This is a new idea to me, thanks!The battery would not take a charge, so I received a sizable refund, and I then proceeded to reverse charge it above 30v so the original included 36v charger could do it's business!
i've been following e bike blogs for over 5 years and that's the first time I read anything like this, and it worked!Yes Kyle, that is exactly what I did….for those with a Velociti or Metro battery that refuses to charge with the original stock charger, & having a voltage below 30v, you can bypass the BMS by charging the cells from the reverse connector. This happened to me when my brand new Velociti's (2010) battery, which I purchased, sat in the warehouse for a couple of years. I did in fact tried to contact A2B service for assistance or even warranty help, but got a dead end.
You will need a cheapy 36v (Chinese) charger and a couple of small nails or paper clips. Remove the battery from rear rack. You can find the + & - with a volt meter on the "out" connector from the rear of the battery. I remember the lower left was the + & the lower right was -. You connect the charger positive and negative to the small nails inserted in each connector hole. I too connected a voltmeter, so I could watch the voltage reading. I remember allowing the charger to go to 36v before disconnecting it & then installing the battery back on to the rear of the Velociti. Then I connected the original factory charger & let it do it's business for about 4 hours.
It worked, and I've been riding this Velociti ebike the last few years without any issues…..though, I do have plans to update it's performance as a 20mph limit brings tears to my eyes.
The Shima is a great way to get around the Federal mandated 20mph limit, with throttle only! Let's see all the manufacturers have a ped assist ebike that is able to do 28+ mph.
Kyle, I've also got a collection of the older Wavecrest Laboratory Tidalforce ebikes (2005) that I ride. Originally they came with heavy front NiMH battery hubs (36v/8ah). I've upgraded the battery source to Lithium poly 46v/16ah packs & replaced the front with a 26" Shimano dyno/disc (Avid BB7) rim to power a front LED light. The performance is around 33 mph on level ground, though generally I cruise around 25mph and use the regen for most of the braking. So, I'm good for awhile, though would not hesitate for a minute to purchase the new Shima ebike if I was in the market.
Now connect me with a source to get the 800watt/48v battery that is used in the UM scooter. )
Thanks for the tips on rescuing these batteries! Hopefully the people that were struggling to get them working at least tried to recycle them... The Lithium is still usable and very valuable.JoePah….I've noticed many of these older Velociti's listed on eBay with dead or no batteries included at reduced costs. A shame this simple solution wasn't used on many of these batteries, instead of just purchasing a new & expensive battery. No doubt many were just thrown away.
What is your A2B of choice?
Hi A2B community,Hello! We have taken note of this great resource of a site, and wanted to lend a hand. If anyone has any questions for us we'd love a chance to answer then here for you and anyone else who may be pondering the same thing.
Hi Ann, I am in the U.S. Area around nyc. Got my kuo+ through an online dealer at Amazon called appliancewarehouse. At full charge I only get about 18 mph with pedal assist. As the battery meter goes down it slows down to about 15. I wonder if I have a slower version of the bike. Is there a way to tell? Is there a way to upgrade the controller or motor? It would be great to go just a bit faster. I have my controller on 5 all the time already.@Harry L, welcome to the forum family! If you have a version produced for the US market, then without pedaling the bike is designed to go 18.7 mph which allows you to have a pretty decent range on that newer 36V 9ah battery. Please share where you live, since this may be why your ebike is a bit slower and there may be options, like a different controller to help you to cruise a the local speeds that are legal in that area.