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« on: November 04, 2018, 04:51:58 PM »
sim_tcr
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Hello,

I have moded fs-i6 Tx to connect to a 1s li-ion(from old cellphone) battery.
I tested flying with a micro and it works.

Any one doing the same, know how to adjust the Tx battery voltage alarm?

Note: Tx is running 14 channel rssi mod firmware v1.7.5

Thanks.
« Last Edit: November 04, 2018, 07:58:01 PM by sim_tcr » Logged
 

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« Reply #1 on: November 04, 2018, 08:42:45 PM »
saikat
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Quite a coincidence .... I have just done the same

Slightly different route ..
I connected a old cellphone battery to a voltage boost converter and adjusted
the output voltage to 5v .

Attaching a pic ...

image.jpg
Re: fs-i6 1s li-ion(from old cellphone) battery mod question.
* image.jpg (72.66 KB, 800x598 - viewed 87 times.)
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« Reply #2 on: November 04, 2018, 09:05:21 PM »
sim_tcr
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I connected a old cellphone battery to a voltage boost converter and adjusted
the output voltage to 5v .

Were you using this DC to DC step up module?
So you have not adjusted the TX low voltage alarm threshold in TX settings?
What mah li ion are you using? Are you seeing any improvements in battery life?
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« Reply #3 on: November 04, 2018, 09:51:35 PM »
saikat
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- yes

- no

- 900 mah Li ion
I get about 6 hrs of run time - about a month roughly .
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« Reply #4 on: November 04, 2018, 10:09:28 PM »
sim_tcr
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- yes

- no

- 900 mah Li ion
I get about 6 hrs of run time - about a month roughly .

Thank you. Ordered the dc-dc step up module. Will report back how much time I got.
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« Reply #5 on: November 05, 2018, 12:06:21 PM »
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Hi guys one can be use as li ion 18650 battery which have higher capacity than old phone battery.
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« Reply #6 on: November 05, 2018, 12:37:23 PM »
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Hi guys one can be use as li ion 18650 battery which have higher capacity than old phone battery.
And take same approach, DC to DC step up?
Robu is selling Samsung 2600mAh 18650 1S Lithium Ion Cell Copy for 250 and original for 620.
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« Reply #7 on: November 05, 2018, 05:05:18 PM »
saikat
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18650 will not fit in the battery bay without cutting the battery compartment
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« Reply #8 on: November 05, 2018, 08:04:16 PM »
tictoc21
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There is another category 18350 li ion if  available.
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« Reply #9 on: November 15, 2018, 11:46:42 AM »
sim_tcr
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Here is pictures of how I moded,

IMG_0834.jpg
Re: fs-i6 1s li-ion(from old cellphone) battery mod question.
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« Reply #10 on: November 15, 2018, 11:55:22 AM »
sim_tcr
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Quite a coincidence .... I have just done the same

Slightly different route ..
I connected a old cellphone battery to a voltage boost converter and adjusted
the output voltage to 5v .

Attaching a pic ...
Could you please provide the exact DC to DC module you used? Mine is big and cannot be accommodated in the battery tray.
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« Reply #11 on: November 15, 2018, 12:54:49 PM »
saikat
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See your own post #2 . I have used the very module to which you linked.
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« Reply #12 on: November 15, 2018, 01:22:44 PM »
Mehul Anand
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A 900mah battery is smaller than a 1020 mah
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« Reply #13 on: November 15, 2018, 01:27:11 PM »
sim_tcr
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A 900mah battery is smaller than a 1020 mah
And the existing battery holder springs are removed.
Also, it looks like, dc to dc module I used is bigger in dimention.
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« Reply #14 on: November 17, 2018, 10:04:28 AM »
sim_tcr
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Completely concealed the setup. Moved the dc to dc module to inside.
I can either put AAs or li-ion.
Happy with it.

IMG_0853.jpg
Re: fs-i6 1s li-ion(from old cellphone) battery mod question.
* IMG_0853.jpg (76.6 KB, 800x600 - viewed 7 times.)
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