GoodScoot
Submitted by bbouwens on Sun, 09/07/2008 - 04:48
Number of wheels:
2
Heater:
-
Batteries:
4 x GreenSaver Silicone Power 12 V 38 AH
Charger:
GreenSaver 5-stage Green Battery charger model HB 48050 (48 V 5 A)
Controller:
JH A48150-HR1 (Chinese)
Conversion time and cost:
New EUR 1495, got this for EUR 950.
Drivetrain:
in wheel
Method for 12v system:
unknown
Location:
Amsterdam, NL
Motor:
1500
Seating capacity:
1
Top speed:
52 km/h on the meter, not GPS checked yet, only with freshly loaded batteries.
Typical range:
30 km
Miles as an EV:
550 (900 km)
Vehicle maker:
Vehicle Type:
System Voltage:
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Comments
Problematic batteries
Since a few months the usefulness of this vehicle is rather limited.
The batteries no longer support riding to the office and back, which is about 25 km.
These batteries are clearly labeled as 12 V 38 Ah, and as coming from Greensaver.cn ;
see image.
However, if I look at what batteries these have on their web site for
electric vehicles: http://www.greensaver.cn/en/Product/ProductDetail.aspx?ProductID=6
then this size matches only with the sp27-12 which has a normal working current of
14.5 A. In reality the scooter draws up to and sometimes a little over 32 A.
Maybe the Huasha factory which produced this vehicle got custom made batteries, that
would explain they're not listed on the web site, but having both a slightly higher
capacity, and well over twice the rated current, that's not very plausible.
So I'm afraid the batteries are running outside their specs, which explains why they
are worn out in just 1150 km. Yes, that's about 40 rides.
At this time I'm investigating a replacement with LiFePO4 batteries, which will almost
double the total investment.
Re: Problematic batteries
OK, we're a few years later now. In the end I went for the LiFePO4 batteries
from Heter Batteries.
I replaced the "silicon gel" batteries at 1675 km's, and today the scooter has
8400 km's on it. So I'm inclined to say that this 13 kg battery pack performs
quite a bit better than the original 46 kg.
The weight reduction makes the handling easier too BTW.