Most:
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The electrical characteristics are almost identical to the original battery with a Tomtom One v2 (Maxell ICP653443 1100 mAh).
The physical characteristics (size 47 x 34 x 7mm, wire length, connector and pinout) are identical.
She arrived half full, indicating that storage was well done.
It works perfect in my old TomTom One v2.
I have not tested the autonomy nor measured the weight of the battery.
Technically, I put a priori 5 Stars.
Cons:
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The battery is received Goobay 3.7 Volt, 1150mAh, 4,26Wh.
It does not match the description, which announces Wentronic battery with a slightly different capacity (1200 mAh).
I take off 2 stars for a description nonconforming product.
Here it does not matter. The product supplied may be accepted.
But more generally, I see a lack of technical information and reviews about products, which keeps me pretty regularly go to buy ...
With the rise in notoriety, Amazon ... do not sleep on your laurels :-)
Assembly-disassembly
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Disassembling a tomtom one v2 super easy (see video on Youtube or GPS location).
The driver you need is a Torx size 8.
Warning: The original battery is glued with double super powerful face.
Total Time Replacement: +/- 15min.
Good luck ;-)