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Old 07-01-17, 08:11 AM   #1
98d5a52ef69a7bf
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Tern vizy light alternative

I have seen that tern has a special rear light which illuminates a circle around the bike rider to somewhat show other drivers a safe zone to overtake.

While I really like this idea, the product by tern only features a non removable battery.

I have been trying to find an alternative which does the same thing but having the chance the use aa or AAA battery would be better as when batteries are worn out, I could just replace instead of throwing it away.

On the included batteries from my busch and Muller ixon light I have already experienced those were completely worn within a year or so. Fortunately enough I could just replace with any aa battery there.
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Old 07-02-17, 12:32 PM   #2
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While I really like this idea, the product by tern only features a non removable battery.
I've been using a Vizy for about one year now. I ride 5 days a week, about 7 miles a day, running the light all the time, in all kinds of weather. I charge the light once a week. I've seen no indication that the light's battery is wearing out. It's a Li-ion battery and is, as you noted, not replaceable. Battery technology has gotten pretty good recently (read: "Li-ion"). When the battery *does* eventually fail, the unit should be recycled appropriately, not discarded in the trash. Likewise, if you use a light with replaceable batteries, you'll have to dispose of them somehow. Modern alkaline cells (eg: AA, AAA, etc) are OK to put in the trash in most areas, but you'd be throwing a lot of them away during the same time period as the life of the Vizy. You could of course use rechargeable cells, which require appropriate disposal as well. Personally, I have found the performance of the light quite satisfactory, and the freedom from replacement and disposal of batteries very convenient.

I should note that the circle of light on the pavement doesn't show up terribly well when there is ambient light, but when you are in a dark area it's pretty obvious. There is a rear-facing array of LEDs that is quite bright. It's not as bright as the Dinotte 300R rear light I had been using (brightest rear light I've ever seen), but I can see its light reflected by stop signs 100 yards or more behind me. The only complaint I have is that the various flashing modes do not include one with the down-facing LED *off* since it doesn't contribute much in the daytime. Since I only have to recharge once a week anyway, this is not an issue.
Steve
Attached Images
File Type: jpg Vizy mounted and illuminated IMG_1300.jpg (103.7 KB, 182 views)
File Type: jpg Vizy rear view IMG_1475.jpg (96.1 KB, 182 views)
File Type: jpg Vizy side view IMG_1476.jpg (96.2 KB, 180 views)
File Type: jpg Vizy on charger charging IMG_1283.jpg (90.8 KB, 181 views)
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Old 07-02-17, 12:47 PM   #3
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I've been using a Vizy for about one year now.
thanks for your feedback. according to your pictures, do you think size wise, there could be an aa/aaa rechargeable battery actually been used inside the device? this has been what they do with electric toothbrushes, while manufacturer claim it's not replaceable, and it's "not safe to replace" - obviously they rather want you to buy new products instead so they profit - it's indeed possible and most of the time rather very easy... while on this example the battery would run out in about two weeks use, most people put the toothbrush on the charger every day (hopefully?) twice. these very short use/charge cycles will wear battery very quickly. just after warranty is over, it'll call for a replacement. another example - i have some good old bose qc 15 headphones, they also just work with aaa batteries, so u could always have a few spares - while all newer models only have the built in non-removeable battery. while over time, after maybe 3 years of use, the battery is worn, the headphones can land in trash bin. my own headphones on the other hand can remove the battery as it's intended and always have fresh and long battery life. in this case - which can also be crucial for vizy light - at some point the battery is empty when you need it, but charging will take too long and you will not be able to quickly put in another battery... i have aa / aaa rechargeable batteries available anyways, so using one-use batteries would be a waste... hopefully this makes sense... i really like the product overall as i said and i think it's a great benefit for safety at night, but wasting resources over profit is not really my thing.
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Old 07-02-17, 02:38 PM   #4
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...according to your pictures, do you think size wise, there could be an aa/aaa rechargeable battery actually been used inside the device?
The internal battery is undoubtedly soldered to a circuit board, and is probably not a convenient size. Also, Li-ion batteries are somewhat touchy to work with, though probably not *that* touchy as long as you aren't driving nails through them.

The Vizy is sealed (see attached images) and, while I wouldn't shy away from attempting a repair *once the original battery died*, I wouldn't expect the housing to be undamaged. Possibly too much work as well (though I too am an inveterate "tinkerer and fixer"). The down-facing lens would probably be damaged beyond repair in a removal attempt. I suspect if there's a screw holding something together, it's under the rubber seal at the top. However, I am not going to go there until the time comes.

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i really like the product overall as i said and i think it's a great benefit for safety at night, but wasting resources over profit is not really my thing.
The Vizy only costs about $40. If you got at least a couple years out of it, as I fully expect to, you'd have spent $20 per year... probably not much more than you'd spend on batteries, and a lot less hassle.

As for the electric toothbrush... I currently have a Sonicare that is 8 years old. It stays on the charger *all the time* when it's not actually in use. This is (probably) a NiMH battery, which has a less durable profile than Li-ion. But it has lasted this long and still performs like new. It's predecessor lasted about 10 years; I took it apart, but it was not fixable (actually, it leaked and water spoiled the circuitboard... battery was still fine). For the record, I am a dentist and have some expertise in electric toothbrushes.

Yes, we live in a "throw-away" society in many ways, but there is often a reasonable compromise. I think the Vizy is more environmentally friendly and convenient than a light that needs new disposable batteries every week or so.
Steve
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File Type: jpg Photo on 7-2-17 at 3.01 PM.jpg (97.8 KB, 167 views)
File Type: jpg Photo on 7-2-17 at 3.01 PM #2.jpg (97.4 KB, 167 views)
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Old 07-02-17, 02:52 PM   #5
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The internal battery is undoubtedly soldered to a circuit board, and is probably not a convenient size. Also, Li-ion batteries are somewhat touchy to work with, though probably not *that* touchy as long as you aren't driving nails through them.

The Vizy is sealed (see attached images) and, while I wouldn't shy away from attempting a repair *once the original battery died*, I wouldn't expect the housing to be undamaged. Possibly too much work as well (though I too am an inveterate "tinkerer and fixer"). The down-facing lens would probably be damaged beyond repair in a removal attempt. I suspect if there's a screw holding something together, it's under the rubber seal at the top. However, I am not going to go there until the time comes.

The Vizy only costs about $40. If you got at least a couple years out of it, as I fully expect to, you'd have spent $20 per year... probably not much more than you'd spend on batteries, and a lot less hassle.

As for the electric toothbrush... I currently have a Sonicare that is 8 years old. It stays on the charger *all the time* when it's not actually in use. This is (probably) a NiMH battery, which has a less durable profile than Li-ion. But it has lasted this long and still performs like new. It's predecessor lasted about 10 years; I took it apart, but it was not fixable (actually, it leaked and water spoiled the circuitboard... battery was still fine). For the record, I am a dentist and have some expertise in electric toothbrushes.

Yes, we live in a "throw-away" society in many ways, but there is often a reasonable compromise. I think the Vizy is more environmentally friendly and convenient than a light that needs new disposable batteries every week or so.
Steve

thanks yet again.


maybe the european market gets all the lemons on tooth brushes... no matter the manufacturer battery performance is most likely decreased after two years. there's tutorials for replacing those with hundred-thousands of views. for my own experience, i have had several brands ranging from panasonic, philips, braun and some of them were beyond repair within the first two years. my latest one is still working fine but i try to discharge completely before recharging again just as a counter measure.



as mentioned before my busch and müller ixon (also a high quality manufacturer for lights ) front light had OEM rechargeable batteries and without too much use they were beyond repair. in this case i was very happy that replacing casual rechargable AA batteries were an option.


anyhow i'll add the tern to my wish list, and probably get it before autumn hits.
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Old 07-02-17, 06:12 PM   #6
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... i'll add the tern to my wish list, and probably get it before autumn hits.
Mine made it through the winter in Chicago sitting out in the garage overnight every night except when it was being charged.
Steve
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Old 07-04-17, 05:21 AM   #7
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Here is the same light for $9

USB Rechargeable Bike Bicycle Cycling Tail Light Safety Warning Rear LED Lamp | eBay

If the link gets old try these search terms from the listing title: USB Rechargeable Bike Bicycle Cycling Tail Light Safety Warning Rear LED Lamp

by the shape and size it may have an 18650 battery and therefore may be replaceable, I think I will buy one and try it out
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Old 07-04-17, 07:08 PM   #8
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Here is the same light for $9

USB Rechargeable Bike Bicycle Cycling Tail Light Safety Warning Rear LED Lamp | eBay

If the link gets old try these search terms from the listing title: USB Rechargeable Bike Bicycle Cycling Tail Light Safety Warning Rear LED Lamp

by the shape and size it may have an 18650 battery and therefore may be replaceable, I think I will buy one and try it out
It's a similar light, but not the same. Any successful product these days is almost immediately copied by someone in China. At Taipei Cycle show there were several of these knockoffs this year. The originator of the design was less than pleased, but what can they do?

Perhaps it's worth it to someone to buy four of those ebay knockoffs in place of a single original. But OP sounds more conscientious of their waste output. Of course you never know how long anything will last.
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Old 07-17-17, 02:59 PM   #9
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... according to your pictures, do you think size wise, there could be an aa/aaa rechargeable battery actually been used inside the device?
See below; an image inside the bottom of a Vizy light.

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The internal battery is undoubtedly soldered to a circuit board, and is probably not a convenient size.
Well, I was close!
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Old 10-29-17, 04:50 PM   #10
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It's a similar light, but not the same. Any successful product these days is almost immediately copied by someone in China. At Taipei Cycle show there were several of these knockoffs this year. The originator of the design was less than pleased, but what can they do?

Perhaps it's worth it to someone to buy four of those ebay knockoffs in place of a single original. But OP sounds more conscientious of their waste output. Of course you never know how long anything will last.


I bought the knock off. After its first full charge it would not stay on for my 45 minute morning commute. I re-charged it got very hot. The knock off is a POS. I tried to open it up to see if I could put a higher capacity cell inside. Everything is glued together. FWIW It does not contain an 18650 but some elipse shaped cell.
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Old 10-29-17, 07:25 PM   #11
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Bummer. Thanks for biting the bullet for us!
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Old 10-29-17, 07:38 PM   #12
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bummer. Thanks for biting the bullet for us!
+1
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Old 10-29-17, 08:37 PM   #13
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I bought the knock off. After its first full charge it would not stay on for my 45 minute morning commute. I re-charged it got very hot. The knock off is a POS. I tried to open it up to see if I could put a higher capacity cell inside. Everything is glued together. FWIW It does not contain an 18650 but some elipse shaped cell.
Well, you're only out 9 bucks! Meanwhile, my Vizy has been dead reliable for over 16 months now.
Steve
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