bbs01 parallel battery addition and tweaked programming

minexplorer

Esteemed Pedelecer
Aug 22, 2017
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Four Lanes,Cornwall
2018-08-02 13.34.54.jpg 2018-08-02 13.35.54.jpg 2018-08-02 13.35.28.jpg 2018-08-02 13.44.18.jpg 2018-08-02 13.44.41.jpg 2018-08-02 13.46.03.jpg Well as per an earlier post i finished fitting a 2nd battery on my bbs01b 350w (18amp) conversion recently.heres some pics.thanks to members for advice on fitting it in parallel,rather than seperate.

ive spent a few days tinkering with the programming.I feel the settings now are giving the best (for me) functioning of the bike yet. It has as much power as it can ,i believe.With higher than usual settings of start current.both for PAS and throttle,giving more torque.i prefer more power coming on more quickly.the controller is the newer type with upgraded mosfets. the PAS at 40% start current (7 amps) and throttle set to current and 20% start current (3.5amps) are both smooth.i dont think these will strain anything,but welcome comments.
 
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Ebyke

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Mar 9, 2018
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Nice how's the performance with these settings..these look similar to my old settings which I will go back to..I notice the stop decay at 6. Does this make a big difference. I see your back to 9 pas levels I think it works better at 9 even thou my display is only 5.. Think I will try this tomorrow.
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
532
93
56
Four Lanes,Cornwall
Nice how's the performance with these settings..these look similar to my old settings which I will go back to..I notice the stop decay at 6. Does this make a big difference. I see your back to 9 pas levels I think it works better at 9 even thou my display is only 5.. Think I will try this tomorrow.
The stop is quick at 6 (read less than 5 can cause problems) than the usual 25. Allows slightly quicker gear change.Higher start currents likewise improve takeup response.So less loss of momentum on hills changing gear.I may try 30 % start current on throttle.Everything i read says higher than 5 -10% Will cause jerky response ,but im not seeing it.

To be honest Ebyke i got the 2nd batt (won for £110 on ebay ,samsung cells,as new,only used once)so i cld run the bike full power all the time ,while still getting a good range. Around 40 miles from 30ah. Im still using 5 levels of PAS ,but you still have 9 in the programming tool.Just set 1,3 ,5,7,9 to what u want.

In practice I only use PAS 5, full 18amps.Only gets warm,never hot.The lower PAS levels are if i ever run low on juice. With the 100 % keep current an pokier start current settings it feels a powerful companion to my new bbshd build .Rather than getting side lined ,this is the go to for the 30-40 mile rides.The bbshd for insane power 20 mile rides.

Below is the bbshd.Used a Marin bobtail trail with a 52v 15 ah samsung 30q cells. Alloy 42t narrow wide chainring from electron cycles.the kit inc a gear sensor.which i fitted at the handlebar end.Not superior to just stopping peddling for a second method.So unless inc for free,as this was,dont bother.2018-07-02 14.08.12.jpg 2018-07-27 16.20.46.jpg 2018-07-27 16.22.03.jpg .
 
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