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-   -   LIFE BATTERY (https://www.rctech.net/forum/radio-electronics/1082644-life-battery.html)

RCDaddy2105 03-22-2021 11:10 AM

LIFE BATTERY
 
what should a Life battery be charged to at max voltage?
protek 2100 Futaba pack 6.6 volts.
the icharger defaults at 3.6 per cell, should I adjust it down to 3.3 per cell?

Roelof 03-22-2021 11:14 AM

3.6 per cell is OK

As an 2S LiPo is specified with 7.4v it is charged with 8.4v.
The same counts for LiFePo4. Battery is specified at 6.6v but is charged at 7.2v

RCDaddy2105 03-22-2021 03:49 PM


Originally Posted by Roelof (Post 15767788)
3.6 per cell is OK

As an 2S LiPo is specified with 7.4v it is charged with 8.4v.
The same counts for LiFePo4. Battery is specified at 6.6v but is charged at 7.2v

thank you Roelof, going to start the 20 cycle break-in

rcbuggy88 03-23-2021 01:23 PM

Why are you breaking in a receiver pack? Especially 20 cycles?

RCDaddy2105 03-24-2021 07:45 AM


Originally Posted by rcbuggy88 (Post 15768274)
Why are you breaking in a receiver pack? Especially 20 cycles?

20 cycle break-in is recommended by protek for the futaba life transmitter pack.


Alexv2024 03-24-2021 09:03 AM

You're expected to do a 20 cycle break in for a battery that gets sipped on at 50 milliamps by a transmitter.

No wonder why I hated my Protek battery in my m17 and why I like the pack I made from an old race pack. Their cells are pure trash.

Andy Koback 03-24-2021 10:39 AM


Originally Posted by RCDaddy2105 (Post 15768549)
20 cycle break-in is recommended by protek for the futaba life transmitter pack.

Unnecessary. Wear it out with 20 cycles so they can sell you a new one. Never heard of this for a TX pack.

RCDaddy2105 03-25-2021 03:30 PM


Originally Posted by Andy Koback (Post 15768622)
Unnecessary. Wear it out with 20 cycles so they can sell you a new one. Never heard of this for a TX pack.

that may be the case, this is the first I’ve heard of breaking in a pack like this also. Below is copied directly from Amain’s site-

NOTE: Brand new LiFePO4 batteries have been found to fail prematurely if they are deep discharged below below 33% capacity too early. A break-in period of 20 cycles is currently recommended. While testing has shown that this battery can be charged at up to 3C rates, it is recommended that this battery not be charged at rates higher than 1C to maximize the lifespan of the battery. Additionally, LiFe batteries should not be discharged below 2.5V per cell to avoid pre-mature failure and maximize battery life span.

rcbuggy88 03-25-2021 04:56 PM

They probably just mean don't let it go below 33% for the first 20 runs.

ksmajor 03-26-2021 07:24 AM


Originally Posted by rcbuggy88 (Post 15769108)
They probably just mean don't let it go below 33% for the first 20 runs.

+1 I've been in the hobby 30 years and never heard of cycling a battery 20 times to break it in.


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