How do I wire split battery packs? / (42% off Hyperion sale)

[donorcycle]

I just purchased three Hyperion 6S "split packs" I was not really sure I wanted to enter the world of lipo, nor did I want split packs, but I got all three for $90 shipped, so I couldn't refuse. They are basically two 3S packs shrink wrapped together from what I can tell:
http://www.flying-hobby.com/shop/hyperion-g3-cx-5000-mah-6s-222v-25c45c-lipoly-split-pack-p-5950.html?language=en

This will be my first build and these are some of my questions:

1. What is the best way to wire these so ideally I can easily connect them to a charger(s) without much reconfiguration or removal from the bike/battery bag?
2. What is the best way to wire the pack and connect to a Infineon controller (that's what I will probably get) Range is more important to me than power.
3. What are the best connectors to use given the (probable) Infineon controller and (probable) Hyperion charger(s)? I still need to buy them.
4. What is the best (safest) charger set up to take advantage of the batteries' 5C-6C charge rate? A big ass power supply and two chargers?
5. What is the best way to monitor LVC while riding? A buzzer? A meter(s) mounted to the handle bars? I plan on mounting the batteries in a triangle bag. Although, that might hurt if they blow up.
6. Anything else I need?

The Hyperion website gives some examples of "split pack" wiring for their chargers here (scroll down):
http://media.hyperion.hk/dn/g3lipo/

To anyone nice enough to read this far, Here is what seems to be a killer deal on Hyperion (NON-split) 7S, 25.9V, 4000 Mah and 5000 Mah Packs @42% off:
http://www.allerc.com/batteries-lithium-polymer-batteries-hyperion-premium-lipoly-hyperion-g3-cx-25c-c-3_4_93_155.html?page=2&sort=products_sort_order
It is my understanding Hyperion Batteries are premium.

 

[neptronix]

Wow. The cheapest site you linked is showing prices that are over 3 times as much $ as hobbyking lipo, which pretty much the brand of choice here due to the value.

To put it in perspective, for what you would pay for 5ah of 10S power, i could buy 15AH of 10S power, plus have a spare pack just in case one failed.

hyperion and iCharger brand chargers are the ones i recommend.
You're going to have to solder your own connectors onto the charger.. what connector depends on which battery you are using.

I like hobbyking 4mm bullets because they are cheap, good, and easy to solder. Plus they come on the hobbyking packs that i buy, so hey

5C charging is an option if you're only using 5AH. That's 25 amps, which is a lot of power.
On 10ah that's 50 amps. I don't think any RC charger can put out that much power.

There are lots of threads on here about how to charge / connect lipo. Check the links in my sig.

 

[donorcycle]

Hobby King 6s: $87.16 http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11937

Hyperion 7S(one more cell) on sale in USA: $112 http://www.allerc.com/hyperion-g3-cx-5000-mah-7s-25-9v-25c-45c-lipoly-pack-p-4533.html

I was just trying to be helpful. Some would say Hyperion is a premium brand compared to Turnigy, but I'm hardly an expert. I've read good things about the Nano-techs.

 

[neptronix]

That's not fair to compare the most expensive hobby king pack to the cheapest hyperion pack.

A 20C turnigy/zippy pack is all you need if you're running 10ah or more on regular hub motor amperages ( 50amps or below ).

Compare to a 30C turnigy/zippy pack of an equivalent cell count & you will have a fair comparison.
But we don't need 30C packs.

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=8582

Shit, i ran 42 amps constant on a 20C 10S 5ah zippy pack for a long time. It handled the abuse well.

Why do you need expensive lipo that is slightly better? I run a 10S 20ah pack of 20C lipo and get less than a volt of sag when i am jamming up a hill. Would i spend double-triple the money to get that extra 0.7 volts out of 41.5 volts? hell no.

 

[donorcycle]

What do some people buy Porches? I drive a Subaru. They're both cars.

Why would I buy expensive Lipo? Because I got 66.6 volts of it for $90 shipped and could put it on my Amazon card? Otherwise, I wouldn't. I would have purchased the Nano-tech I used in the fair comparison (same specs). If Nano-tech is not worth the extra money compared to cheaper Turnigy, that is contrary to some of the well-informed opinions I've seen on this board.
Hyperion lipo has a reputation for quality, reliability, longevity, and service here in North America if you read RC forums. Failure of their packs is rare and taken seriously by the company's North American representatives. I doubt if they would advise a person to go ahead and buy an extra 10%-20% of their lipos because that is the known failure rate out of the box. What about safety?

Anyway, the main purpose of this post was to try to get some help with the battery pack I'm building so I don't start a fire. Let me know if you are up for it. You seem to be knowledgeable and I can respect your opinion.

 

[number1cruncher]

Because I got 66.6 volts of it for $90 shipped and could put it on my Amazon card?

Where is this deal? Is it gone? I want in!

 

[neptronix]

If customer service is worth paying 2-3 times more for, then i understand.
Otherwise there is not a 2-3 times better performance out of the cells, maybe 5%-10% better amp output / flatter curve than equivalent Turnigy 25C.

I paid $360 shipped for 10S / 20AH pack made out of turnigy batts. ( 8 x 5S 5ah )
Like i said, i get 0.7v of voltage sag on the lowest end, cheapest 20C battery that hobbyking sells.
Even nanotech would be a rediculous waste of money. I'm running my battery at a 2C rate. Other eBikers may run an equivalently sized battery at a 3 or 4 C rate ( 80 amps ).. why would you need expensive high C rate lipos again? Are you running multiple hundreds of amps?