Battery question about BS02 8Ffun 750/1000w

Uilleam Gilvoni · Feb 24, 2016

Hello

Does anyone know how can I use a battery with higher volts than 48v? I mean, I heard some people using 52v or 57v + on their 8fun bafang 750/1000w. How is it possible? Can anyone explain me please?

Thanks!!

Raged · Feb 24, 2016

The capacitors are rated at about 63v and they have a high voltage cut off (safety) at 60v.

This means the max you can run

14S lipo - also known as 52V - hot off the charger voltage is 58.8v ( 14 x 4.2v )
13S lipo - Also known as 48v - hot off the charger voltage is 54.6v ( 13 x 4.2v )

Battery voltage drops as it is being used. Fully charged (hot off the charger) may be 58.8v, but after you use 50%-60% of the battery, the voltage may drop down to 50.4v ( 14 x 3.6v ). This is why controllers have a working voltage range to cater for the battery voltage differences between fully charged and near dead.

2old · Feb 24, 2016

Just to augment Raged's comment, I've been using a 52V battery (Luna 52V, 10 ah, 26f cells) with my BBS02, and they seem matched perfectly.

tomjasz · Feb 24, 2016

2old said:
Just to augment Raged's comment, I've been using a 52V battery (Luna 52V, 10 ah, 26f cells) with my BBS02, and they seem matched perfectly.

Great with a BBSHD too.

Ykick · Feb 25, 2016

Know that if you order 52V BBS02 the LVC (low voltage cutoff) will likely be programmed too high to use 48V battery pack at a later time.

Of course, you may reprogram if you have proper hardware/software but as 52V version ships, it’s only meant for 14S (52-58V operating range) Lipoly, Li-ion and not much else.

Uilleam Gilvoni · Feb 25, 2016

Ykick said:
Know that if you order 52V BBS02 the LVC (low voltage cutoff) will likely be programmed too high to use 48V battery pack at a later time.

Of course, you may reprogram if you have proper hardware/software but as 52V version ships, it’s only meant for 14S (52-58V operating range) Lipoly, Li-ion and not much else.

Hello, so I would need to reprogram the 52v battery to make it work right?

Uilleam Gilvoni · Feb 25, 2016

Raged said:
The capacitors are rated at about 63v and they have a high voltage cut off (safety) at 60v.

This means the max you can run

14S lipo - also known as 52V - hot off the charger voltage is 58.8v ( 14 x 4.2v )
13S lipo - Also known as 48v - hot off the charger voltage is 54.6v ( 13 x 4.2v ).

Hi
So.. can I use 52v battery without need of using any additional thing? Just plug and ride?

Thanks

Uilleam Gilvoni · Feb 25, 2016

2old said:
Just to augment Raged's comment, I've been using a 52V battery (Luna 52V, 10 ah, 26f cells) with my BBS02, and they seem matched perfectly.

So no need to configure or anything eh? Great!

Thanks!

tomjasz · Feb 25, 2016

It's not the optimum solution but it's fine. I run both. 48 and 52V. I don't get all the excitement with 52V. Eventually Bafang will have a 52V version.
Now that the largest supplier of Bafang mid drives is a USA vendor, expect more changes, perhaps even a bit faster. And the support gets better and better.

tomjasz · Feb 25, 2016

Check this out!

http://lunacycle.com/bbs02-parts/

Bearings, pinions, pawls, gears, and more!
I wrote Eric last November and posted here that he promised to bring in parts...well....

Raged · Feb 25, 2016

Uilleam Gilvoni said:
Hi
So.. can I use 52v battery without need of using any additional thing? Just plug and ride?

Thanks

Yes. I run 52v (14S lipo) on a 48v BBS02 750.

Battery question about BS02 8Ffun 750/1000w

Uilleam Gilvoni

10 mW

Raged

1 kW

2old

100 kW

tomjasz

1 GW

Ykick

1 GW

Uilleam Gilvoni

10 mW

Uilleam Gilvoni

10 mW

Uilleam Gilvoni

10 mW

tomjasz

1 GW

tomjasz

1 GW

Attachments

Raged

1 kW

Similar threads