Cateye wireless battery replacement

[Matt2matt2002]

Hi folks.
Last month I replaced the battery in the wheel sensor and today there's a blank screen on the main body.

I removed the outer cover but cannot flip off the cover over the battery itself.
I've tried unscrewing it but there's nothing to grab/ grip.
Nowhere for a screwdriver to fit in.

I hope the picture explains my situation.

I think old age has worked it's magic.

Any thoughts or tips much appreciated.

Matt

[UKTony]

Not familiar with this type as I use a wired  basic Cateye 7 which only has one battery in the display unit.  If there’s no slot for a coin/ screwdriver maybe, and it’s just a maybe, try pushing the battery cover down and twisting anti clockwise abit like those childproof bottle tops which you press down then twist to unlock. Hope that make sense.
Cheers
Tony

[mickeg]

An inner cover and an outer cover?  Inner cover, I would expect it to have a slot if it is supposed to be rotated, or an arm that sticks out to one side.

If you have the model number, perhaps the instructions are out on the internet?

[Matt2matt2002]

An inner cover and an outer cover?  Inner cover, I would expect it to have a slot if it is supposed to be rotated, or an arm that sticks out to one side.

If you have the model number, perhaps the instructions are out on the internet?

Thanks Mick
The picture shows the outer cover removed. It's below the main body.
The cover for the battery won't come off. There is no groove for a screwdriver blade. And nothing to grip the cover with.
Very frustrating.
I don't have the model number to hand but do have the printed instructions that came with the unit.
The instructions don't make it clear how to remove the battery.

Thanks for your comments

[Andre Jute]

Try this, Matt:

A. If the cover is rectangular or square and runs to the edge of the device

1. Press hard on the inside edge of the battery cover. This should be the edge furthest away from where it slides off the main body.

2. Holding the pressure, slide towards the edge.

3. To refit, study the edge of the battery compartment and the underside of the cover. Match them them and apply pressure, then slide until the lock clicks and the back end of the cover is flush with the side of the device.

B. If the cover is round and fits flush

1. Press hard around the edge until you feel some give under your finger.

2. Hold the pressure and rotate counter-clockwise.

3. To refit, study the edge of the battery compartment and the underside of the cover. Match them them and apply pressure, then rotate clockwise.

C. If neither of the above works

1. Inspect the sides of the device, pressing to see if the plastic is thinner and more flexible at any point. Press hard when you find the spot and insert a small screwdriver to keep the clip open, using the minimum force.

2. On the other side of the device, there will be either a tongue fitting into a slot, in which case the two parts have already parted, or a similar bendy clip as the one you have a screwdriver marking directly opposite. Insert another small screwdriver to press the clip inwards.

3. Refitting is the reversal of this procedure, with the two parts clipping together with minimum force against the weak battery spring.

Good luck.