[happyrabbit]

http://www.batteryspace.com/LiFePO4-26650-Battery-25.6V-6.6Ah-168Wh-20A-rate-in-Aluminum-Box.aspx

http://www.batteryspace.com/Smart-Charger-6.0A-for-25.6V-LiFePO4-Battery-Pack-----CE-listed.aspx (aka RWA)

http://www.batteryspace.com/smartcharger30afor256v8cellslifepobatterypackstandardfemaletamiyaplug.aspx

Peak Voltage 29V Avg 26V Built-in Over Voltage + Under Voltage + Over Current

Add the Correct connectors & Paint & u r good to go    ~$330 -> $370 (including charger)

Dwight

[mamba315]

Thanks for the links Dwight.  I'm gonna try to edumacate meself a little before pulling the trigger.  I've never done a DIY project yet

Edit:  the chargers say they are for 8 cell packs, but the linked battery pack is 16 cell.  Is that a potential issue?

Edit 2: also, on the Dodd battery kit there's some type of fuse on the red discharge wire between the battery and the amp.  Good idea here too?  I need my hand held here.  Electronics not my specialty and I'd hate to fry my beautiful Sensation

Hey Seth, feel free to move the battery talk into a separate thread if you want.  I don't mean to derail your RMAF thread.

[happyrabbit]

Mamba,

1# The Pack is 2x8 -> 16 cells
2# The Pack has a integrated circuit which deals with the over current condition. (aka no fuse needed)

http://www.batteryspace.com/PCB-for-8-cells-25.6V-LiFePO4-Battery-Pack-at-16A-limit.aspx


Dwight

[mturkel99]

Happy, what do you think of this battery? It seems more powerful...

http://www.pzhlz.net/24V-10AH-LIFEPO4-Lithium-Battery-Pack-p-23038

[se-riously]

I didn't think I would hear about LiFePO4 versus SLA outside of the e-bike circles, but...

I suppose the high maximum discharge current of the LiFePO4 might be beneficial in this application, but it would be limited by a fuse anyway.  I'm actually curious what the fully charged voltage of this battery pack is, since it's possible the audible difference, especially at lower volumes, could be attributable to a series of batteries put together to bring you closer to the Virtue's maximum 30v, rather than two 12v SLA's that bring you to about 26 volts.

Edit - I just read happyrabbit's post.  With 8 LifePO4 cells, you're looking at a fully charged voltage of around 28.8 - 29.6 volts.  That's probably why there's such an audible difference.

2nd Edit - Looking at the RWA website, it looks like the key benefits of LiFePO4 are higher nominal voltage and lower impedance compared to SLA's.

[OzarkTom]

LiFePO4
Has anyone tried this on their Sensation yet?

[romymartinez]

LiFePO4
Has anyone tried this on their Sensation yet?

Or Virtue Two?

[Rclark]

Oh god, I thought I'd found the last possible accessory for my amp. Nope, there's this too   

Has anyone compared this to the standard SLA's? I think the SLA under charge is up around 28 volts, so I can't see a benefit.

I think I'll save my pennies for a battery buss, pending OzarkTom's report.