heatstroke said:
The next option is to get the lion from TT but $$$
As I mentioned, using any Lithium Ion packs with the Trail Tech systems
is not a good idea! There have been a number of different controllers released with the Trail Tech systems, but the latest ones do not like these cells and the higher voltages. This is the primary reason why there are so many issues with the Battery Space released lights. The poor quality circuit protection is just yet another separate issue with the Battery Space Lithium Ion packs. I have also never seen Trail Tech endorse, let alone sell Lithium Ion Packs!
Even if you think you know what you're doing,
I do not recommend removing the protection circuit from any Lithium Ion pack! The protection circuit prevents (or should prevent…

overcharge, over discharge, too higher current draw and protect the pack from dead shorts. If Lithium Ion packs are subjected to these conditions without a quality protection circuit it is likely that the cells will go into an irreversible condition called thermal runaway, where the cells basically heat up until they explode or catch on fire. This cannot be stopped!
Another reason is that the Trail Tech low voltage cut out is extremely low, and if the battery protection circuit is poor or non existent, then your pack will be damaged.
The capacitor fix is for a slightly different issue, where the protection circuit in the Battery Space packs actually does its job properly, preventing over current draw when the light is first started. The "fix" simply tricks the circuit protection by helping smooth the current draw when the light is first fired.
Anyway back on track and on to LED systems, if you don't feel comfortable with a home made system I would consider a triple emitter light of some description. Again the 6 hour burn time limits choice and cost a little, but here goes:
I really recommend that you have a look at the
Night Lightning Endurenz, it's available in a number of configurations, and can be purchased as either a ready to ride system or a DIY kit. Depending on the capacity of the Lithium Ion pack you select, you could see runtimes anywhere between 4 and 11 hours. They're nice and bright, lightweight, feature great runtimes and are awesome to deal with.

:thumbsup:
It would also be worth considering the Princeton Tec Switchback 3, or DiNotte Dual systems. From there you would be looking at the Cat Eye Triple Shot (lacking in runtime), and then down to less bright twin emitter lights which have been covered quite substantially here on MTBR. I really think you need to stick to a triple emitter light or a pair of double / single emitter lights for the riding you describe.
A little more for you to think about and consider anyway!
Dave.