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 Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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So r2d2 is finished i charged batteries and downloaded the app and turned on the droid he moved forward about 2cm and his head spun left to right so fast it nearly broke off and no noises from the speaker and the only button to work on the switch panel is the on off button all leads are correctly fitted please help before he ends up in the bin 
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We first need to check the spec of your batterys. Can you please provide a link to the batterys you have purchased. Current builds:-C57,Zero, Lamborghini Countach, Caldercraft HMS Agamemnon,Robi,R2-D2, MFH Cobra .
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Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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Got the batteries off ebay same as the ones described in the issue which describes which batteries to buy ultrafire as per pictures in the relevant issue
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 Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,827 Points: -13,348
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Scoobyjoff wrote:Got the batteries off ebay same as the ones described in the issue which describes which batteries to buy ultrafire as per pictures in the relevant issue The magazine does not describe to buy Ultrafire batteries, it actually describes recommendation NOT to buy batteries from auction sites and to buy from a reputable battery seller. The Ultrafires shown in the magazine are bonafide Ultrafire batteries. Unfortunately there are many fake Ultrafire batteries on the market that don’t meet the spec stated, it could be that the batteries sold to you via eBay are such.
To determine this, we need to verify your battery spec, in particular what the capacity discharge (Amps) is, this might be printed on the battery or obtained from the spec noted on eBay. If you can provide the eBay seller link, we can possibly determine this for you and go from there.
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Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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Ok so what batteries are recommended as theres hundreds if not thousands out there my knowledge of amps etc is limited so any help is appreciated but i dont understand why the batteries would make r2d2s head turn faster than normal
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Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,827 Points: -13,348
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You may not actually need to replace your batteries but as a start point, we need to verify the spec of what you have which need to be over 3 Amp capacity discharge. If they are less than this, there won’t be enough Amperage to correctly power R2 and will throw up all sorts of glitches.
It’s difficult to determine what problems there actually if if the batteries used may be incorrect.. So let’s start by verifying your battery - do you have a link to the eBay seller?
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Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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Hi not sure how to add the link on here https://rover.ebay.com/r...lk%2Fitm%2F192540892024 but ill try this let me know if it makes any sense and would it tell me on the battery the amps??
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Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,827 Points: -13,348
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There is nothing I can see that says Unprotected and nothing noted about its capacity discharge Amperage. Also says the battery can be cycled up to 1000 times which is unlikely as the norm is 3-500 and therefore could suggest a fake, and in fact other sellers of the same battery indicate it is a Protected type. Therefore is unsuitable for R2 regardless of what it’s Amps is, (R2 battery spec should be Unprotected).
You need to ask the seller if it is an Unprotected battery and what it’s capacity discharge (Amps) is., I suspect it will be unsuitable for R2 in both aspects.
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Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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Ok many thanks can you reccomend batteries for r2 then please as i really have no idea which ones i need
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Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,827 Points: -13,348
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Scoobyjoff wrote:Ok many thanks can you reccomend batteries for r2 then please Afraid I can’t recommend any but a number of the members on the forum purchased the battery in this link which has the requirements..
https://18650.uk/product/samsung-30q-button-top/
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Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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Ok thats great so do i have to prepare them in the same way with the small charger with the LEDs on until it says full
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Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,827 Points: -13,348
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Scoobyjoff wrote:Ok thats great so do i have to prepare them in the same way with the small charger with the LEDs on until it says full Yes indeed
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Rank: Beginner Level 1 Groups: Registered
Joined: 25/12/2018 Posts: 7 Points: 21
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Thank you so if i try those samsung batterys it should cure the problems with the speed of the head and the other issues
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Rank: Pro Groups: Joined: 24/08/2009 Posts: 48,827 Points: -13,348
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Afraid it’s not a magic wand, all it does is give you a start point of having a battery spec which meets the requirements to operate R2 and any problem caused by having incorrect batteries should no longer be the case, (providing that no damage has been done by previously having installed a protected battery).
Correct batteries won’t cure incorrect wiring or component fault - this is the next thing to check through if your R2 still has problems once the new batteries are installed. The fact remains that the batteries you currently have are unsuitable.
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