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Posted by surprisetalk 9 hours ago

Replacing the old battery on rechargeable bike lights(jvns.ca)
117 points | 63 commentspage 2
alexb87 1 hour ago|
This guy is funny, he spent~$20 and at least 10 hours to fix a product that can be purchased with $5.
prmoustache 53 minutes ago|
So what?

I replaced a lezyne light battery too. There was no point buying a complete light, send this one to waste when I could just look up for the actual reference in a search engine, find the correct one and replace it.

It is not about money, it ia about not sending unneeded stuff to waste management, which we pay for actually.

beej71 6 hours ago||
I recently had an even easier time changing the rechargeable battery in some mini Christmas lights. The unit was a solar panel in a box held by 4 screws. Took them out, and it was a regular AA nimh just slotted in there. Changed it out and the thing worked again.

I wonder how many people just chucked the unit when the battery wore out.

sandworm101 6 hours ago|
I just bought the Steam Frame, valve's new VR headset. After hunting for a USB port on the paddles i was shocked to find how eaily it is to replace thier batteries. They are Duracell AA.
thirtygeo 7 hours ago||
Love to see MEC gear - but I wish it were more repair friendly!
nubinetwork 5 hours ago||
If it killed the first battery, won't it just do it again to the new one?
sokoloff 5 hours ago||
They were 10 years old. Batteries are wear items from time and cycles.

If they kill a battery even every 5 years, that’s still fine IMO and replacing the battery is way better than tossing the whole thing.

kazinator 4 hours ago||
It didn't. The battery killed itself. Modern rechargeable batteries don't like being left discharged in storage.
Mawr 5 hours ago||
If anybody's interested in what the meta is for buying bicycle lights:

  1. Reflectors are the best for baseline visibility, they cost nothing and are reliable.

  2. The tail light is the important one.

    a) Try to find ones with a pulsating mode, blinding other road users by shining bright rapidly blinking lights into their eyes is not good, actually.

    b) If you've got the money, consider a radar instead.

  3. For the front, decide if you *need* illumination strong enough for you to see where you're going in darkness, or if you can get away with just being seen by others.

    a) For the former, make sure you get a front light that has a beam cutoff, preferably a lens-based solution. Then of course, install the light with a proper downwards angle, otherwise there's no point to the cutoff.

  4. Side visibility is important, this is usually accomplished by some see-through parts at the business end of the light.

  5. DO NOT use blinking modes at night. Blinking is for daytime, use only constant or at most, pulsating modes at night.

  6. BTW, the 2nd most important piece of equipment after your tail light is a mirror (>=2inch diameter).
Some recommendations:

• If biking casually or without a need for strong front light, honestly just get the cheapest lights you can get + some reflectors. Having any light at all gets you 99% there.

• Magicshine lights in general, I myself have the EVO 1300 for front and the SeeMee 300 for back. Proper lensed beam cutoff for the front, pulsing modes for the back, and good side visibility for both.

• Bontrager Flare RT for the back — small but powerful thanks to its focused beam. They also seem to have a front positional version but I haven't tried it.

prmoustache 50 minutes ago||
Actually my own recommedation is different.

Having steady rear lights mounted at the socks/ankles is the way to go. The movement of the feets makes you instantly recognisable and standing out from very far away. There is a (australian I believe?) company that sell pedals with integrated lights too but I can't remember the name.

I am still using a regular rear light powered by a dynamo hub though, as batteries can always die without warning.

xp84 4 hours ago|||
" b) If you've got the money, consider a radar instead."

Can you explain this? What is this and how does it replace a taillight?

happosai 3 hours ago||
A bike radar alerts you about vehicles behind you. It does not replace a taillight, rather they always (I think?) have taillight integrated. For more details:

https://www.cyclingweekly.com/group-tests/best-radar-bike-li...

prmoustache 48 minutes ago||
Radars don't save you nor do they tell you which motorist will run you over and which will not. So it doesn't help you take decisions on wether to take evasive actions such as jumping in the field next to the road.

Radars don't push cars away from cyclists.

They are more a placebo than anything really.

julenx 1 hour ago|||

  > a) Try to find ones with a pulsating mode, blinding other road users by shining bright rapidly blinking lights into their eyes is not good, actually.
Note that in some (at least European) countries, only steady light is legal.
layer8 5 hours ago||
I’d replace #5 by “don’t use battery-driven lights, use a dynamo hub” (except for e-bikes, of course, which also won’t have strobing lights).
sandworm101 7 hours ago||
Talk about burying the lead. This was a MEC bike light. It should have a replacable battery!

https://www.mec.ca/en/explore/sustainability-innovation

vohk 7 hours ago||
Ah, memories. I miss the old MEC, before they overextended on real estate and had to sell the farm to private equity. I have a pile of MEC branded gear I'm still happily using 20 years on. I have some restrained hopes for the new ownership group to bring it back, but I'll always miss the co-op.

These lights would have predated the private equity era but I'm guessing sourcing options were somewhat more limited back in 2016.

kazinator 4 hours ago|||
I had a membership since 1994. They basically erased it.

Between that, and selling out to a foreign-private-equity-held holding, and the incident during which an innocent shopper who came to return an item was attacked by a security guard, and the idiotic Vancouver location with no connection between underground parking and the store room, I decided never to set foot there again.

Fuck MEC, the Mountain Equipment Coo^H^Hompany! Not the MEC you knew.

sandworm101 7 hours ago|||
The best motorcycle sunglasses i every bought were mec, from the vancouver store in around 2005. Flat sided (for helmets) with interchangable lenses, and seriously dark lenses too. But when I walked in, in full sportbike leathers, i got more than a few dirty looks.
giglamesh 6 hours ago||
Did we not just see the battery replaced? ;)
b0rsuk 2 hours ago||
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perennialreport 4 hours ago||
The button-top vs flat-top distinction trips a lot of people up here: many bike lights ship with protected button-top 18650s, and a bare flat-top cell is a few mm shorter, so it can rattle or lose contact over bumps even though it's nominally the same battery. The other gotcha is cells with welded solder tabs vs spring contacts - if the original pack is tab-welded, a drop-in replacement sometimes needs a shim to make reliable contact. Worth checking both before ordering the replacement cell.

The wider point stands though: a bike light is a battery, an LED, and a switch, and the battery dying first is the most repairable failure mode there is.

bt_hn_c_3077 6 hours ago|
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