Help! Alternative battery mounting options?

[Pingk]

Hey all,

I'm converting a 2018 Giant Roam and I've just bought a large Hailong-style battery from Greenlance.

Unfortunately I didn't think to check if the mounting holes on the downtube would line up with the Hailong rails, and it turns out they don't. The holes in the downtube were meant for a water bottle and are too low (close to the bottom bracket) for the Hailong rails, but not low enough that I could mount it backwards.

Other than drilling new holes in the frame, which is really a last resort, what's the best option for fitting it inside the triangle?

Would it be worth making an adapter plate to go between the batter and frame, or buy a bag that hangs from the top tube? Return it and get a different battery that will fit?

I'm sure I'm not the first person to have this problem so I'd love to hear your advice!

 

[saneagle]

Hey all,

I'm converting a 2018 Giant Roam and I've just bought a large Hailong-style battery from Greenlance.

Unfortunately I didn't think to check if the mounting holes on the downtube would line up with the Hailong rails, and it turns out they don't. The holes in the downtube were meant for a water bottle and are too low (close to the bottom bracket) for the Hailong rails, but not low enough that I could mount it backwards.

Other than drilling new holes in the frame, which is really a last resort, what's the best option for fitting it inside the triangle?

Would it be worth making an adapter plate to go between the batter and frame, or buy a bag that hangs from the top tube? Return it and get a different battery that will fit?

I'm sure I'm not the first person to have this problem so I'd love to hear your advice!

Drilling holes in the frame is nothing to worry about. It's pretty easy to fit rivnuts without special tools as long as you get the ones with a bit of a flange at the top. A Hailong type battery really needs three screws to hold it, anyway, so you need to fit at least one rivnut.

There are adapter plates that you can buy from all the normal places, but they look a bit ugly and amateurish with straps around the frame.

 

[Pingk]

Drilling holes in the frame is nothing to worry about. It's pretty easy to fit rivnuts without special tools as long as you get the ones with a bit of a flange at the top. A Hailong type battery really needs three screws to hold it, anyway, so you need to fit at least one rivnut.

Interesting, I don't have the tools (and I don't want to mess it up) so I'll call a couple of local bike shops and ask if they would be able to do it for me.

You've changed my mind on the adapter plate, it's currently a choice between a triangle bag or asking a shop to make some holes.

 

[saneagle]

Interesting, I don't have the tools (and I don't want to mess it up) so I'll call a couple of local bike shops and ask if they would be able to do it for me.

You've changed my mind on the adapter plate, it's currently a choice between a triangle bag or asking a shop to make some holes.

Try to avoid bags for batteries. It's almost impossible to stop movement of stuff inside one. It looks great when the bike is in your garage, but bouncing up and down on pot-holed roads is different. Nearly all the ebike fires they show online have bag batteries.

I'd be surprised if a bike shop would help you.

You can buy the tool and rivnuts for less than the adapter plate:

86PCS M3-M8 Heavy Duty Hand Riveter Rivet Gun Kit Threaded Metric Rivet Nut Set | eBay

Qty: 86PCS. M8: for sheet with thickness from 0.5mm to 3.5mm. 1x Nut Rivet Mandrel: M8. 10 x M8 Threaded Rivet Nut Inserts. The rivet tool is ideally used for aluminum blind nut rivets. 20x M3 Threaded Rivet Nut Inserts.

www.ebay.co.uk

 

[Pingk]

Try to avoid bags for batteries. It's almost impossible to stop movement of stuff inside one. It looks great when the bike is in your garage, but bouncing up and down on pot-holed roads is different. Nearly all the ebike fires they show online have bag batteries.

I didn't know that! Thanks a bunch!

So it turns out I'm a dummy and didn't check the rails properly - the aluminium shell doesn't have anything inside, so I could get holes drilled in the baseplate and use that rather than drilling into the bike!

 

[matthewslack]

Just be careful the battery is sufficiently attached....those two water bottle mounting bolts were not designed for 3 or 4 or 5kg of load. One or two extra bolts gives peace of mind.

 

[Az.]

E-Bike Battery Installation Adjustment Bracket ONLY for Hailong Batter

Technical Data:Fit for: 36V/48V Hailong batteries https://www.yosepower.co.uk/products/36v13ah-hl-i-down-tube-lithium-ion-e-bike-battery https://www.yosepower.co.uk/products/36v15-6ah-36v17-4ah-48v13ah-hl1-2-hailong-down-tube-lithium-ion-e-bike-battery Packing List1x Installation adjustment...

www.yosepower.co.uk

It doesn't look ugly. You can't see it at all.

 

[Pingk]

Just be careful the battery is sufficiently attached....those two water bottle mounting bolts were not designed for 3 or 4 or 5kg of load. One or two extra bolts gives peace of mind.

Very good point.

My plan at the moment is to get a universal rail (like Az. suggested), since that would be more secure than drilling holes into rail, and if it looks unstable then get a strap or use cable ties. I'm still against drilling into the frame but if I really need to then I will.

 

[saneagle]

Very good point.

My plan at the moment is to get a universal rail (like Az. suggested), since that would be more secure than drilling holes into rail, and if it looks unstable then get a strap or use cable ties. I'm still against drilling into the frame but if I really need to then I will.

People are often scared of the unknown. Once the unknown becomes known, it's no longer scarey.

 

[sjpt]

People are often scared of the unknown. Once the unknown becomes known, it's no longer scarey.

Sorry to deviate from the thread, but I can't resist.
8 years ago it was unknown what Trump would be like as a president, and it was scary. Now it is no longer unknown, but even scarier.

 

[thelarkbox]

Fwiw when selecting Stainless steel riv-nut inserts i failed to secure them with diy tools so ended up buying a £10 ebay compression tool with a lever..

Could be just me being kack handed or the stainless steel being a tad stronger?

 

[thelarkbox]

Sorry to deviate from the thread, but I can't resist.
8 years ago it was unknown what Trump would be like as a president, and it was scary. Now it is no longer unknown, but even scarier.

Thank goodness we cant do brexit twice.. we all know someone who wants too.. and 'properly' this time..

 

[saneagle]

Sorry to deviate from the thread, but I can't resist.
8 years ago it was unknown what Trump would be like as a president, and it was scary. Now it is no longer unknown, but even scarier.

IIRC, there were no US wars while he was president, the economy boomed, unemployment went down, taxes went down, and he made a few mean tweets and gave various politicians funny names, of which my favourite was Liarwatha after Liz Warren lied about her native Indian ethnicity. It still makes me laugh. I admit that it will be scarey if he gets re-elected, but the reason I'm scared is the unknown of what his enemies will do to disrupt him.

 

[saneagle]

Thank goodness we cant do brexit twice.. we all know someone who wants too.. and 'properly' this time..

The problem with democracy is that it doesn't work because people don't know how to vote for the right thing. Is that it?

 

[lenny]

Germany 1933: from democracy to dictatorship

After Hitler came to power in 1933, Germany became a dictatorship. Read how the Nazis used oppression and violence to eliminate Jews and political opponents.

www.annefrank.org

 

[saneagle]

Let's get back to rivnuts. For the very many batteries that I fitted, I never used a rivnut tool - just a screwdriver and some scraps of steel strip. Now I have that tool and can't wait for a chance to use it, but my frame already has 6 rivnuts in the downtube because every time I buy a new battery, the bloody holes are in a different position. If I fit any more, I'll be able to use it as a cheeses grater.

 

[thelarkbox]

IIRC, there were no US wars while he was president, the economy boomed, unemployment went down, taxes went down, and he made a few mean tweets and gave various politicians funny names, of which my favourite was Liarwatha after Liz Warren lied about her native Indian ethnicity. It still makes me laugh. I admit that it will be scarey if he gets re-elected, but the reason I'm scared is the unknown of what his enemies will do to disrupt him.

Really?? your comparing "granny told me i had a little indian in me " to jan 6th and 1000's of well documented lies n bullshit.


Edit-- conversion best continued over a friendly pint or 6 - Riv-nuts we can agree are pretty good..

 

[Woosh]

In the 4 years that Trump was president, the US national debt grew from 20 trillion dollars to 28 trillion dollars and that before covid costs were added. Besides lowering taxes, there is little to say about what he has accomplished.
It's clear that he borrowed to buy votes with lower taxes.

 

[saneagle]

In the 4 years that Trump was president, the US national debt grew from 20 trillion dollars to 28 trillion dollars and that before covid costs were added. Besides lowering taxes, there is little to say about what he has accomplished.
It's clear that he borrowed to buy votes with lower taxes.

That's not what Wiki says:

https://en.wikipedia.org/wiki/National_debt_of_the_United_States