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Old 07-20-2009, 06:57 PM   #1
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Default Servo Saver / Car Saver

What is everyone's opinion on a servo saver / car saver.

After my little accident on the weekend I am thinking of getting one.

Also on average how long do the batteries last in the buggy. I have 4 AA ni-mh 2400mah in there now, I leave them in there, with switch turned off.

Should I charge them up after every 3rd tank or can I get more out of them?

I have spare batteries so changing them isnt an issue, just dont want to do it too often as it lowers the life of batteries.
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Old 07-20-2009, 07:48 PM   #2
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are you talking about a failsafe? to shut your car down when you battery runs out?
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Old 07-20-2009, 07:55 PM   #3
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I believe so, its more so when it goes out of range or the receiver looses a signal.
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Old 07-20-2009, 07:56 PM   #4
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What kind of car? Normally all hobby grade cars run on 5 cell when going to rechargeables because they have a lower nominal voltage of 1.2V per cell as opposed to 1.5V per cell for alkaline (duracell) batterys.You may want to start problem solving there.
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Old 07-20-2009, 09:24 PM   #5
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Ummmm the space for batteries in the car had a AA battery holder in it, so I just bought rechargable batteries and put them in.

How would I make sure ive done the right thing? I didnt see any alternative.
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Old 07-21-2009, 05:53 AM   #6
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What car? What radio?

If it can hold 4 AA it should be able to hold a 5 cell pack
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Old 07-21-2009, 04:59 PM   #7
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Car: BSD racing (thats all I know about it) its a kit car I purcahsed new over the internet.

Radio: its not branded, i know its a cheapo and plan to upgrade it as soon as I can afford a new one, but for peace of mind I wanted a servo saver.

From what I have read over the interet when the receiver looses the radio signal for whatever reason the servo saver electronically applies the brakes and sets the steering to centre.

It sounds like a good idea, just wonder if anyone uses one or has an opinion on it.
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Old 07-21-2009, 06:22 PM   #8
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I found another name for what I am looking for, its called a failsafe.
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Old 07-21-2009, 06:25 PM   #9
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Quote:
Originally Posted by sperera View Post
I found another name for what I am looking for, its called a failsafe.
failsafe only works when batteries are good it is for lose of radio signal. Most use springs or small rubberbands on the carb to pull it shut if the batteries die.
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Old 07-21-2009, 07:16 PM   #10
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Ok, I havent seen any with the bands, the only one I have seen was electronic but yeah it only works if there is life left in the battery which is cool with me, i am worried about the receiver failing or something along those lines.
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Old 07-21-2009, 07:31 PM   #11
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If your going to buy a failsafe, i suggest you buy these also.

GMK Throttle Return Bands
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Old 07-21-2009, 07:55 PM   #12
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Awesome, they are a good idea. I am taking my buggy into the shop this weekend to get it tuned (i thought it might be a good idea if someone expereienced tune it as this is my first one) and will be able to watch and learn from what they are doing.

I will pick up some bands during this visit.
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Old 07-21-2009, 08:00 PM   #13
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Quote:
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Ok, I havent seen any with the bands, the only one I have seen was electronic but yeah it only works if there is life left in the battery which is cool with me, i am worried about the receiver failing or something along those lines.
If the receiver fails the fail safe can also. Rubber bands or the suggested GMK bands and a fail safe are the only way to go. You wrap the band around the carb neck and where the servo attaches to the carb. There are pics if search around.
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Old 07-21-2009, 09:19 PM   #14
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Yeah I am pretty sure I understand how it works, both are best which is exactly what I will do.

cant wait for the weekend, should be fully run in and tuned by then, finally take it off road now.
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Old 07-21-2009, 10:59 PM   #15
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When you upgrade the radio like you said, most good radios have a built in fail safe. Built in fail safe will work for loss of signal,rubberband will work if your throttle linkage pops off.For low or loss of battery some internal fail safes work of at least claim to work for low batt & depending o your servo, hair band/o-ring may move throttle servo to shut position.When in doubt CYA.
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