On doing some detective work on a knocking sound coming from mid to rear of the bike, i narrowed it down to the battery.
I've had two batteries now, with the internals of both slightly different.
After unscrewing the 4 screws from the top of the unit the differences are as follows:
1st battery: the cells are encased in a thin plastic surround taking up about 3 quarters of the space from the bottom to the top. The BMS rests across the top with a foam piece separating it from the top of the cells.
2nd battery: the cells located as 1st battery with a thin plastic surround, but in this instance the BMS is slotted down the side of the cells.
The plastic surround is there to obviously stop any cells shorting out on the aluminium case.
The problem is that although the cells are a snug fit, the whole cell package is only held in the case by what looks like low strength glue.
After riding along a few rough tracks, the shocks break the hold and the cell pack is allowed to slide up and down inside the casing.
Probably why my first battery conked out!
This causes it to bang up and down on the bottom of the case and i very much doubt does it any good.
I simply squeezed a load of 'No More Nails' between the plastic surround and the aluminium case. As much as i could get in without looking too obvious (in case it needs a warranty repair)
Note: the different length top screws when replacing.
In the words of Phil Tufnell 'Happy Days'
I've had two batteries now, with the internals of both slightly different.
After unscrewing the 4 screws from the top of the unit the differences are as follows:
1st battery: the cells are encased in a thin plastic surround taking up about 3 quarters of the space from the bottom to the top. The BMS rests across the top with a foam piece separating it from the top of the cells.
2nd battery: the cells located as 1st battery with a thin plastic surround, but in this instance the BMS is slotted down the side of the cells.
The plastic surround is there to obviously stop any cells shorting out on the aluminium case.
The problem is that although the cells are a snug fit, the whole cell package is only held in the case by what looks like low strength glue.
After riding along a few rough tracks, the shocks break the hold and the cell pack is allowed to slide up and down inside the casing.
Probably why my first battery conked out!
This causes it to bang up and down on the bottom of the case and i very much doubt does it any good.
I simply squeezed a load of 'No More Nails' between the plastic surround and the aluminium case. As much as i could get in without looking too obvious (in case it needs a warranty repair)
Note: the different length top screws when replacing.
In the words of Phil Tufnell 'Happy Days'
