The Merax bike is a sturdy, basic bike for those who want nothing more than a couple of wheels capable to roll over rough ground for a budget price. 36V 8.8Ah Li-ion battery is conveniently placed for easy access and charging, but it is also removable and securely locked by key. Convenient placement. It takes 6-8 hours to charge the battery from 0%-100%, and you can expect to travel up to 22–28 miles on a full charge.

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Firstly there's a magnetically-fired locking pin in the rear wheel, triggered by kicking a button on the hub. This is fairly secure in itself and almost impossible to remove without destroying the bike. In London, we'd pair it with a more traditional bike lock so there's a more obvious visual deterrent, though a LED matrix screen on the frame does issue a warning to would-be tea-leafs.
Sharonerd- it depends really on what electric kit you are looking at. At my shop, we encourage customers to invest in the more expensive and higher quality products that will and do last longer than lower quality lower priced products because they are simply made with better materials. The comments above that talk about 3 years on kit do tend to be the lower quality kit's life spans and even if you maintain them, the sad truth is that after 3 years, the company's reselling the lower quality product tend to not be around any more to enable you to invest in a new battery. Or the product itself has been sunseted and no spare parts are around. This can be true of the higher priced products too, but more so on the lower end.

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