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Old Dec 09, 2013, 05:00 AM
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HS-7115TH question

Is it OK to use this servo with a 2s Lipo Rx battery or do I need to put a diode in series?

Dick
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Old Dec 09, 2013, 02:29 PM
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Quote:
Originally Posted by dickw View Post
Is it OK to use this servo with a 2s Lipo Rx battery or do I need to put a diode in series? Dick
Yes, it is OK to use this servo with a 2s Lipo Rx battery, diode not required.

. Servo - Operating Voltage Range - (Hitec) usuage with NiMH, Lipol & A123 batteries.
extract "update Oct10"
High Voltage Digital Servos now offer 7.4V performance. This means that you can drive these servos using a 7.4V Lipo
without having to step the voltage down to 6 volts (however the servos can still work well on 6V)


. HS-7115TH High Voltage, Titanium Gear Slim Wing Servo

. Hitec HS-7115TH
Features:
- 2 cell Li-Po (6 cell NiMH) Compatible
- High Standing Torque
- Gold Plated Connector
- Ultra Slim Wing
- Durable Titanium Alloy Metal Gears with Dual Ball Bearings
- Programmable Digital Amplifier w/ MOSFET drive

Much more information available below sub section:
"Servo - Digital & Brushless Servo, Programmers and Software" at

Alan's Hobby, Model & RC FAQ Web Links

Alan T.
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Old Dec 09, 2013, 03:02 PM
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dickw's Avatar
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Thanks Alan.
I was looking for a voltage range that included 8.4v, but I guess Hitec is using 7.4v as the nominal voltage for a 2s Lipo which can lead to misunderstanding.

I have already seen warnings against using it on 2s Lipo without a diode, hence my question, so I wish Hitec would make the voltage range clearer on their website .

Dick
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Old Dec 10, 2013, 07:18 AM
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I use them with lipo 2S 450mah (no diode) in the Enigma hotliner, more than a year, no problem.
Regards

Quote:
Originally Posted by dickw View Post
Is it OK to use this servo with a 2s Lipo Rx battery or do I need to put a diode in series?

Dick
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Old Dec 10, 2013, 08:53 AM
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Originally Posted by miche View Post
I use them with lipo 2S 450mah (no diode) in the Enigma hotliner, more than a year, no problem.
Regards
That's good to hear Miche. Mine are going in a Speedfire 2 and I plan to use 2s 350 Lipo for Rx and servos.
Thanks again for the confirmation.

Dick
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