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.