Which LiFePO4 Rx Pack?

[domp444]

I'm wondering which rx pack I should use for the following setup:

45" Cat Hull
2x Hydra Ice 240A ESCs
2x Neu 1521 1,5d Motors
2x 5s 5000 45c
or
2x 6s 5000 45c

I'd like to get a Hyperion LiFePO4 pack but I'm not sure which mah will be appropriate for my boat. And also, how long will, let's say, a 1600mah pack last me?

[domp444]

Anyone?

[PaulKTM]

The size is based on the servo's and the time you want to run between Rx batt. charges. With a HD servo (and only 1 needed for the rudder) a 1100 MAH would last you a weekends running I'd say. In a 21 size nitro outrigger with 3 servos I use a 850 pack, all weekend long race and no charge required. In most cases I use up about 1/3 the capacity. The Hyperions CAN be quick charged also, so you could re-charge while you do a battery charge for the boat.

[sailr]

With the additional info you provided, get one of the bigger LiFE receiver packs.

HYPERION LIFEPO4 2100 MAH 6.6V RECEIVER PACK - HP-FR21002S

or

HYPERION LIFEPO4 3000 MAH 6.6V RECEIVER PACK - HP-FR30002S

or

HYPERION LIFEPO4 3800 MAH 6.6V RECEIVER PACK - HP-FR38002S


I use the 2100. It's very small and lightweight.


It should easily last an entire weekend of running. Why use anything smaller? You have plenty of room and weight isn't the issue.

Remember, your receiver and servos may not be able to take 6.6V! The first time I tried an LiFE battery, it fried my steering servo in the first lap but didn't bother the receiver.

I use a cheap BEC ($6 from hobbyking) as a voltage regulator. Wire it in between the battery and the receiver (I put a switch in the circuit also). Works great!

Finally, you have to have a charger that does LiFE packs!

[domp444]

Thanks for the info! I just looked at my servo, and it takes 6v max. I would've probably fried it just like you, haha. If I end up using my 6EX, the rx only goes up to 6v, but if I go with a new 4PL, the rx goes up to 7.4v.

I think the 2100 will work for me, since I'm not planning on running full days or weekends. It should work.

I have an iCharger 206b, which charges all types of batteries including LiFePO4.

[sailr]

Be sure to let me know when you place your order.

[domp444]

I sure will! Thanks :)