so I’ve been looking at 48v 20ah batteries for my bbshd and have now come across 52v 30ah ones

First question will I fry my kit by putting 52v through it? I’ve got the colour display if that makes any difference

 

I’m looking more for distance rather than top end speed and happy to put in leg effort I just need a bit of a boost with the hills around here

 

It looks like I may need to buy a bling ring what tooth ring would you guys/gals recommend if the bike can get to 20 mph I’m more than happy at that speed but 15mph will do me fine

May do a bit of off road occasionally but speed isn’t a priority, getting up hills with out my lungs exploding is

Thanks

Paul

No, the 52v battery came about because of the BBSHD. A 48v battery is 54.6 hot off the charger and a 14S 52v is 58.8, the capacitor in the BBSHD controller can handle 63v.

 

http://www.bikecalc.com/speed_at_cadence

 

Plug in some chainring sizes your tyre size etc. Your motor cadence (loaded) is 100/116 - battery nominative/hot off the charger, it will be 116 with a 52v battery.

so I’ve been looking at 48v 20ah batteries for my bbshd and have now come across 52v 30ah ones

First question will I fry my kit by putting 52v through it? I’ve got the colour display if that makes any difference

 

I’m looking more for distance rather than top end speed and happy to put in leg effort I just need a bit of a boost with the hills around here

 

It looks like I may need to buy a bling ring what tooth ring would you guys/gals recommend if the bike can get to 20 mph I’m more than happy at that speed but 15mph will do me fine

May do a bit of off road occasionally but speed isn’t a priority, getting up hills with out my lungs exploding is

Thanks

Paul

Have you got room in your triangle for a 30Ah battery?

The 42t bling ring just clears the motor casing, any smaller than that and

you will not get the 20mm offset on the chainring.

 

Have you got room in your triangle for a 30Ah battery?

I'll have to measure it this afternoon as my triangle is quite small compared to other bikes it's a cube ltd pro, have thought about a rack on the back too

The 42t bling ring just clears the motor casing, any smaller than that and

you will not get the 20mm offset on the chainring.

 

[ATTACH=full]24337[/ATTACH]

What battery do you have on there daveboy ?

What battery do you have on there daveboy ?

Shark 52v 17.5Ah 14s5p Sanyo NCR18650GA

Edited April 23, 20188 yr by daveboy

A battery that big on a rack would be terrible! Em3ev have some nice triangle batteries and bags to put them in, or you can find cheaper triangle batteries on Aliexpress.

I’ve looked and looked and looked again I think a triangle battery won’t fit in my triangle, a battery like daveboy might just squeeze in there, depending on the taper. My other option is a rear rack which may affect the ride as it would I imagine be similar to having a small child in a baby seat behind me or my other option would be to mount on top of the top tube

What are your thoughts guys ?

I’ve looked and looked and looked again I think a triangle battery won’t fit in my triangle, a battery like daveboy might just squeeze in there, depending on the taper. My other option is a rear rack which may affect the ride as it would I imagine be similar to having a small child in a baby seat behind me or my other option would be to mount on top of the top tube

What are your thoughts guys ?[ATTACH=full]24360[/ATTACH]

 

That is a huge triangle!

Hi Paul, Before I ordered mine I made a cardboard template using

the dimensions off the website. In the end it fitted easy.

[ATTACH=full]24338[/ATTACH]

Shark 52v 17.5Ah 14s5p Sanyo NCR18650GA

My apologies for going slightly off topic, but don't suppose you got a link for where you got those battery straps, do you?

Hi Paul, Before I ordered mine I made a cardboard template using

the dimensions off the website. In the end it fitted easy.

Where did you get yours daveboy ?

https://www.amazon.co.uk/gp/product/B00JORPXV6/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

 

very expensive ...61p for five.

I think I joined 2 together to go round battery.

came in about 2 weeks.

 

If you want to order more than one pack, do it one at a time then delivery is free.

Edited April 25, 20187 yr by daveboy

Where did you get yours daveboy ?

The bay. Mine looks slightly different but same company.

 

https://www.ebay.co.uk/itm/Electric-Bike-Shark-Battery-52v-17-5Ah-Panasonic-GA-Charger-UK-Stock-32/273160765917?hash=item3f99a681dd:g:QycAAOSwXtNaY5mV

Another question guys, installs I've seen on utube there's a yellow capped connector which is for brake/gear sensor then a green one which I don't have on my kit

See pic

Left cable I assume is to controler

Second for brake /gear sensor

Third NO IDEA

Far right is speed sensor

I think it is for lights IIRC. Test what voltage is available on the connecter.

Hey Paul, got your kit I see, nice one:D Green connector is on the main harness that plugs into the left connector in your hand and is for the LCD display. Second is gear sensor, cap it off if you don't have one. Yeah, like AK says third is lights, but don't try using it for anything high powered, IIRC it is only 500mA output. It's all plug and play really, worst part is routing wiring neat and losing excess cable which takes 10x longer than fitting the drive. How you doing with the spacers and battery search?

Hey Paul, got your kit I see, nice one:D Green connector is on the main harness that plugs into the left connector in your hand and is for the LCD display. Second is gear sensor, cap it off if you don't have one. Yeah, like AK says third is lights, but don't try using it for anything high powered, IIRC it is only 500mA output. It's all plug and play really, worst part is routing wiring neat and losing excess cable which takes 10x longer than fitting the drive. How you doing with the spacers and battery search?

 

Hi Pete ordered a battery today, text my brother a few days ago to see if he could recommend somewhere to get spacers he turned up at my house yesterday took measurements and dropped spacers off today ( didn’t even know he was back in uk) just need SWMBO to go on a shopping trip now so that I can start assembly(yes darling I picked this up from eBay for £50, bloody bargain)

hi

found a little waterproof saddle bag from decathlon only 3.99 leave zipped up but cut under side hide connectors and excess cable inside then it Velcro's to the top tube hide many sins

just need SWMBO to go on a shopping trip now so that I can start assembly(yes darling I picked this up from eBay for £50, bloody bargain)

Best of luck getting away with that one:Ddon't forget to liaise with your postman to grab your next CC statement:D

Best of luck getting away with that one:Ddon't forget to liaise with your postman to grab your next CC statement:D

Done through PayPal a kind friend who I pay cash to transfers it to my paypal SWMBO is like Sherlock Holmes though, so have to make sure no evidence is left around

Pete or any one else,time for me to engage your help again SWMBO has gone out for a while so I’ve loosely put things in place. I had 2x10mm spacers and 2x5mm spacers made so 15mm each side I think my chainline is to far out with that combination but the lock ring with the groves in won’t go near the bottom bracket to dig in to it, I assume I tighten this up against the spacers?

Edited May 1, 20187 yr by Paul chef

Time for some creative thinking Paul. You are gonna have to offset the drive to improve your chain line. You are also gonna need another 2/3 mm of spacers so you can tighten the retaining nut. A 42 tooth or bigger Bling Ring or Luna Eclipse chainring will also push your chainline back towards the frame by a few mm. The other thing to consider is a custom cassette to align the cogs you use the most within the useable range you have. This will mean less gears, but with the HD, you shouldn't find that a problem. Get that front deraileur off out the way so you can judge the chainline better.

Edited May 1, 20187 yr by wheeliepete

I’ve got a few 1mm spacers on the way, I just put it loosely togeather to see what I’d need to do, then had to quickly put away as SWMBO came home lol I’ll have to dismantle the front derailleur tomorrow and take off the gearleaver from my handlebar