Bafang BBS01B Battery

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#41
O.k if only local but if you do long rides (50-100 miles ) then range is king, change settings to suit your needs and parallel another battery in.
True of course.After 35 odd miles tho my ass is finished...even with a comfy saddle.But thats why i added a 2nd batt to the bbs01,so i could go further and keep the fun factor of high assist.
 
Jan 5, 2019
121
4
#42
Program cable arrived today, set start current to 20, keep current to 100, and.........amps to 18! No error codes thrown up at all and it rides a LOT better!
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#43
Program cable arrived today, set start current to 20, keep current to 100, and.........amps to 18! No error codes thrown up at all and it rides a LOT better!
Thats cool.the original 250w bbs01 controllers could be programmed to 18amps ,but people found the bbs01b ones couldnt. They threw an error,looks like thats been changed.
 
Jan 5, 2019
121
4
#44
yeah I'm pretty pleased with it! does that mean it's 350w? can it go any higher, or does that damage it?
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#45
yeah I'm pretty pleased with it! does that mean it's 350w? can it go any higher, or does that damage it?
Yes the 250 is just the 350 with the controller set to fewer amps. The 350 shows max 20 amps on the model description details on the right , when you click read.

Have you got one of the colour displays that shows amps and watts.id like to know if upping 18 to 20 actually does anything.ive long since permanently fitted my watt meter to another bike as its display.

Just this minute ordered one of these.same as my bbshd one.Displays watts & amps as well as estimated remaining range based on the current PAS level. Worked out to £48.90 from the cheapest seller on aliexpress with a $3 promo an free postage.
 

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Jan 5, 2019
121
4
#46
no mine is the c265, can prob measure the amps with a multimeter though. Would it be safe to up it to 20 amps?
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#47
no mine is the c265, can prob measure the amps with a multimeter though. Would it be safe to up it to 20 amps?
If when u plug in the programming cable it says max 20 amps then yes. Even my very basic chinese rear hub controller runs at 19.5 amps (soldered shunt)without issue,according to the watt meter i fitted.
 
Jan 5, 2019
121
4
#48
set to 20 amps now, feels quicker. what wattage is it at 20 amps?
 

peter.c

Esteemed Pedelecer
Apr 24, 2018
530
22
thurrock essex
#49
On a full battery fresh of the charger at 42v [41.9] will be 500-600 watts in short bursts max seen on a 350watt set at 20 amps is 653 watts on the display run current depends on cut out speed and keep current the 500watt is 25 amps standard and is :)
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#50
On a full battery fresh of the charger at 42v [41.9] will be 500-600 watts in short bursts max seen on a 350watt set at 20 amps is 653 watts on the display run current depends on cut out speed and keep current the 500watt is 25 amps standard and is :)
Is the 500w a bbs01 as well peter,but just with a 25amp controller.Have they put thicker wiring in it, or is it the same as the lower amp versions?
 

peter.c

Esteemed Pedelecer
Apr 24, 2018
530
22
thurrock essex
#51
The 500 watt was an 02 and was in the zobop the 350 watt is in a fattie built up for the snow [still waiting:(] and the last is a em3ev 250watt high current bbs 02 from the us [special order and yes the power cable is thicker but not by much]. But I always fit a thicker copper cable from the battery to the xt90 and cut the excess of the motor 36v cable
 
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Jan 5, 2019
121
4
#52
I bought some xt90's but they are a nightmare to unplug, so using some good quality deans atm.
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#53
The 500 watt was an 02 and was in the zobop the 350 watt is in a fattie built up for the snow [still waiting:(] and the last is a em3ev 250watt high current bbs 02 from the us [special order and yes the power cable is thicker but not by much]. But I always fit a thicker copper cable from the battery to the xt90 and cut the excess of the motor 36v cable
Ahh a 02. i was thinking there for a minute maybe a 01 could be upgraded to a 25amp controller.the internal wiring of the 01 motor i imagine wouldnt take the higher amps if this power version always uses a 02 motor.
 

peter.c

Esteemed Pedelecer
Apr 24, 2018
530
22
thurrock essex
#54
EM3 have bbs01 pre 2016 models 500 watt on sale for $ 275.00 so it must have been possible
 

peter.c

Esteemed Pedelecer
Apr 24, 2018
530
22
thurrock essex
#56
Not had a controller to bits yet but if it is not potted it might be possible to upgrade the mosfets I have seen a you tube of mods on the bbshd to 60 amps but I do not think its worth the aggro more power the quick way is more volts I noticed the bbs02 500 watt now has a 48v option use your 52v batt and just buy another mount and put the 36v on ebay
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
405
49
50
Four Lanes,Cornwall
#57
Not had a controller to bits yet but if it is not potted it might be possible to upgrade the mosfets I have seen a you tube of mods on the bbshd to 60 amps but I do not think its worth the aggro more power the quick way is more volts I noticed the bbs02 500 watt now has a 48v option use your 52v batt and just buy another mount and put the 36v on ebay
bbs01 couldnt take 52v tho surely.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
476
129
Basildon
#58
Not had a controller to bits yet but if it is not potted it might be possible to upgrade the mosfets I have seen a you tube of mods on the bbshd to 60 amps but I do not think its worth the aggro more power the quick way is more volts I noticed the bbs02 500 watt now has a 48v option use your 52v batt and just buy another mount and put the 36v on ebay
You have to be very careful with any mods to a BBSxx controller. The potting is absolutely essential. Without it, if any water gets past the gasket, your motor will spontaneously catch fire even when it's switched off at the control panel.
 

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