Dear blog readers,
yesterday it finally happened. My Solar-Scooter Dealers 
, with the support of my energetic Using the BMS retrofitted. I almost feel guilty because I've ridden the scooter now makes up a good 1800km without BMS, and have traveled here and there but quite long distances at a time.
It is the BMS20-550pro Ide ²-e. The BMS provides not only a uniform charge of the cells, it also warns acoustically against deep discharge.
The installation turns out everything was not problematic.
it simply the "helmet" is expert, the preceding cover and the underlying controller unscrewed. We shall have free access to the batteries, at the terminals, the cable from the BMS in the manual described and labeled Order to be fixed.
Right: expanded tub, and the controller can be pushed to the side.
Before you begin the leads of the BMS at the appropriate poles of the batteries to clamp, you should always remove the cable of the negative pole of the last cell, so that no closed electrical circuit can occur during any work!
Right: cable remote works while the last cell.
Each cable contains a small backup of the BMS and can be the appropriate place of BMS separated comfortable / unplugged. This gives the opportunity to screw first all cable ends to the batteries and then plug the cord back in after the wiring harness. This is much more convenient and easier than ever tamper with the riesiegen Kabelwust.
Right: BMS Kabelwust, each cable is clearly labeled -> no problem with assignment / installation.
Below: view of the battery cable ends already connected with the BMS.
Finally, connect the cables correctly and test everything according to instructions. Everything worked perfectly.
The good news: after 1850km driven without BMS were my cells in the control measurement, fortunately, still almost balanced. All cells differed by less than 0.1 V.
10/24/2009 Correction: This measured after installation of the BMS values are not meaningful! They were measured at rest, so that in the meantime all cells had recovered to a consistent level. A correct measurement should be done under load!
I am regularly despite BMS now anyway every few thousand kilometers control measure - interest payment.
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