BBSHD max power battery

[paulstung]

I'm running my BBSHD with a 48v 13.6Ah battery, but what is the max voltage it can handle ? Cheers guys

 

[spinningmagnets]

The factory controller can run off of 48V or 52V (13S or 14S), and can be programmed to use a maximum of 30A. If you use an external controller, I don't know how high you can go before you run into problems.

 

[paulstung]

Thank you buddy, but when I charge my 48V it actually charges up to between 53 and 54V ? So would a 52V be too much ?

 

[Alan B]

60V is too much. 14S is commonly referred to as 52V and is 58.8V hot off the charger and works fine.

 

[paulstung]

That's the bit I was a little concerned about was, straight of the charger, being a tad higher than rated. Thank you matey.

 

[amigafan2003]

I've run my BBS02 on 15s liipo (charged to 4.1v per cell or 61.5v hot off the charger) for thousands of miles with no ill effect. If the pack voltage is over 62v it throws an error message when power is applied. I think the BBSHD has the same 62v cutoff.

 

[dogman dan]

Smart to have 62v HVC. Caps inside are almost positively 63v max.

14s would be the way to go. I hate it that the standard for 48v is 13s. Fine at first, but later in the ride, lame.

 

[paulstung]

Thank you guys, that cleared things up. I think I'm going to go for the 5000MAh 20c lipo packs from Hobbyking, for a 14s, 5p, for a 52v ( 58.8 hot of the charger ) 25Ah, pack, I just need to research bms or not to bms.

 

[dogman dan]

That will be a huge lipo battery. You should have 50-80 mile range.

I like to bundle my lipo into packs no bigger than 10 ah,, because if one cell goes off, 48v 25 ah is one hell of a big fire. 48v 10 ah fits in an ammo can in my fireplace. Theoreticaly, if 10 ah goes off, the other 10 ah in another can will not.

One ammo can fits in my long handled flat shovel, so I have a chance in hell of flipping that sucker out the door if it's just hot and smoking.

Out on the road,, I may be carrying 30 ah for a long ride, but no need to carry all of it for shorter ones.

 

[paulstung]

Funnily enough I've just been thinking about battery safety, so i have revised my plan, rather than having a 25Ah, I'm going to go with 2 10Ah packs, with the option to join them into a larger 20Ah pack, for the longer journeys. I would just need to use each 10Ah pack, as close to equal amounts, say 1 journey each day to work out of each pack, to keep the cycles on point with each. At least that way they'll be as close to married cells as I can get them. But I'm still unsure on if it would be a feasible way to go about it.