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The worlds heaviest battery box
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Wed Feb 13, 2019 10:35 pm    Post subject: The worlds heaviest battery box Reply with quote

So , there I am having to strip the battery box out yet again to replace another rectifier .




]

Decided I would give it a bit of a weigh .

Go on , guess how heavy ??
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2bims



Joined: 03 Apr 2010
Posts: 7289

PostPosted: Wed Feb 13, 2019 11:29 pm    Post subject: Reply with quote

Certainly more than the SHorai battery it holds...1.9Kgs....?? instead of using polystyrene or foam to infill around it...get some balloons and fill them with helium and push those in...will offset the battery box somewhat
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brian



Joined: 22 Aug 2011
Posts: 3769
Location: Australia

PostPosted: Thu Feb 14, 2019 3:17 am    Post subject: Reply with quote

Maybe get one made out of carbon fibre?
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Thu Feb 14, 2019 7:43 am    Post subject: Reply with quote

brian wrote:
Maybe get one made out of carbon fibre?


Man after my own heart !!

Sheet alloy template .

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brian



Joined: 22 Aug 2011
Posts: 3769
Location: Australia

PostPosted: Thu Feb 14, 2019 10:47 am    Post subject: Reply with quote

You’d think that they would have at least made it from aluminium in the first place or even better CF. I’ve never done anything with carbon fibre.

So how much weight was in the other boat anchor?
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Thu Feb 14, 2019 1:32 pm    Post subject: Reply with quote

Original = roughly 700 grams



Current alloy template/mold = 110 grams



That's got to be the cheapest 600gram weight saving going . Cost me £2k to loose 5kg with the carbon wheels and £42 for the alloy basic bent bracket. ???? Shocked Laughing
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brian



Joined: 22 Aug 2011
Posts: 3769
Location: Australia

PostPosted: Thu Feb 14, 2019 8:40 pm    Post subject: Reply with quote

Yep that’s great weight loss at a bargain price mate. More tasty than eating kale and lettuce to lose weight too Wink
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851
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Matty82



Joined: 10 Jul 2014
Posts: 155

PostPosted: Mon Feb 18, 2019 1:01 pm    Post subject: Reply with quote

Makes you wonder how much thought went into it really? Also thinking what else can be modified/updated that we haven’t thought of
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Mon Feb 18, 2019 1:26 pm    Post subject: Reply with quote

Matty82 wrote:
Makes you wonder how much thought went into it really? Also thinking what else can be modified/updated that we haven’t thought of


There's plenty on the vdue to go at. Lots of the brackets are 2mm steel . Rear light/exhaust can mount , exhaust mount under seat is the standard vdue exhaust one with another bracket attached for the Jolly Motos !!!!.

But that is a common theme across all Bimota's TBH, they go to the great lengths on billet this , carbon that and then stick some QE2 bracket on to hold a solenoid /battery / ECU etc.
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Matty82



Joined: 10 Jul 2014
Posts: 155

PostPosted: Mon Feb 18, 2019 2:36 pm    Post subject: Reply with quote

Ha, ya it’s at this stage that they realised the budget had gone 😂😂😂
Sometimes wonder if the cook was also the account
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brian



Joined: 22 Aug 2011
Posts: 3769
Location: Australia

PostPosted: Tue Feb 19, 2019 12:22 am    Post subject: Reply with quote

It’s pretty easy to knock off a heap of weight from a stock production bike, any stock bike really. Once all of the obvious big heavy bits have been lightened or replaced, it starts to get really expensive per ounce. I have a friend who has a 90’s race bike that was already very light. He’s been slowly replacing anything that he can to make it even lighter. He has gone as far as replacing the long bolts that hold the crank case halves together with hand made titanium bolts, he’s even made titanium capscrews for the tops of the FCR carbs and uses titanium lock wire Shocked
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851
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Moreno



Joined: 15 Oct 2018
Posts: 66
Location: Chiavenna (italy)

PostPosted: Tue Apr 30, 2019 3:46 pm    Post subject: Reply with quote

vort28 I read that you have already replaced 3 voltage regulators, confirm that the lithium battery from these problems?
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vort28



Joined: 22 Mar 2010
Posts: 2194
Location: Northwest , UK

PostPosted: Tue Apr 30, 2019 6:17 pm    Post subject: Reply with quote

Moreno wrote:
vort28 I read that you have already replaced 3 voltage regulators, confirm that the lithium battery from these problems?


I am on my third.

First one was my fault , in a rush changing a flat battery , shorted battery contacts , blow rectifier . acid battery.
Second one , OEM rectifier, battery connection worked loose , blow rectifier and battery , lithium battery

Third - Mosfet rectifier upgrade/Lithium battery , all OK at the moment , also repositioned rectifier for extra cooling.
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Moreno



Joined: 15 Oct 2018
Posts: 66
Location: Chiavenna (italy)

PostPosted: Tue Apr 30, 2019 8:42 pm    Post subject: Reply with quote

I have heard good things about the regulator mosfet ..... 10AH are few to turn on the 500 v two ..... I want to put 14AH battery but you need a lithium battery to have the necessary space .... you have photos of your changes to the voltage regulator?
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Gammaboy



Joined: 25 Feb 2016
Posts: 188
Location: Brisbane, Australia

PostPosted: Wed May 01, 2019 12:16 am    Post subject: Reply with quote

brian wrote:
he’s even made titanium capscrews for the tops of the FCR carbs and uses titanium lock wire Shocked

Aluminium would be lighter - and adequate for non structural fasteners like that.
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