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Battery Replacement on Lights with Internal Li-Ion Batteries



 
 
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  #51  
Old February 9th 18, 05:56 AM posted to rec.bicycles.tech
Tosspot[_3_]
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Default Battery Replacement on Lights with Internal Li-Ion Batteries

On 08/02/18 20:59, Joerg wrote:
On 2018-02-06 18:56, Frank Krygowski wrote:
On 2/6/2018 1:52 PM, sms wrote:
My wife's Lezyne Deca 1500XXL stopped taking a charge, at all. Taking
it apart, I saw that the batteries were made in July 2015. Not too
good for it to stop working that soon.


Some of my bikes have dynamos that are 30 years old. They just keep
going and going and going...


Until you get to a red traffic light, to a stop sign or into a traffic
jam. The perfect spot at night to get hit by a car driver who didn't see
you because you were on the only unlit vehicle around.


Any light set worth it's name has a standlight function that will keep
the lights on for 3-5 minutes. Walking pace is enough to get them going
again as well.

I have 4-5h of juice on the road bike. If that ever drops off it'll cost
me around $20 to replace the Li-Ion battery pack.


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  #52  
Old February 9th 18, 05:58 AM posted to rec.bicycles.tech
Tosspot[_3_]
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Posts: 1,180
Default Battery Replacement on Lights with Internal Li-Ion Batteries

On 08/02/18 23:05, Ian Field wrote:


"Joerg" wrote in message
...
On 2018-02-06 18:56, Frank Krygowski wrote:
On 2/6/2018 1:52 PM, sms wrote:
My wife's Lezyne Deca 1500XXL stopped taking a charge, at all. Taking
it apart, I saw that the batteries were made in July 2015. Not too
good for it to stop working that soon.

Some of my bikes have dynamos that are 30 years old. They just keep
going and going and going...


Until you get to a red traffic light, to a stop sign or into a traffic
jam. The perfect spot at night to get hit by a car driver who didn't
see you because you were on the only unlit vehicle around.


AFAIK: dynamo lighting is illegal in the UK for exactly that reason.


I do not think so. It may be the case that turning across traffic at
night you don't wait in the middle of the road, but stand lights have
long solved that.

The wording leaves much ambiguities about using a dynamo to maintain
rechargeable batteries.

Its probably "technically" still an offence.


  #53  
Old February 9th 18, 06:01 AM posted to rec.bicycles.tech
Tosspot[_3_]
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Posts: 1,180
Default Battery Replacement on Lights with Internal Li-Ion Batteries

On 08/02/18 21:08, Joerg wrote:

snip

Ye olde 2.4W + 0.6W with a dynamo? When riding at a good clip, meaning
north of 15mph, those never lasted much longer than a month for me. Even
if they didn't blow their filament right away the bulbs turned black
inside and became dimmer than they were already to begin with. When I
was a teenager I started equipping my bikes with what the automotive
industry already understood over 100 years ago, brighter lights, a
battery and charging system. Soon the German police wanted to give me a
ticket for "non-standard" lighting. Luckily by that time I was a Dutch
resident and they had to let me go.

Those 2.4W bulbs were a joke. My bikes (after my teenage years) always
had better lighting than that. Now it's all LED on my bikes but the real
stuff with more than 500 lumens.


There is a bloke that cycles the opposite way to me on my commute. He
uses a halogen bulb and the orange tint brings back memories. Fine to
be seen with, useless to see with.
  #54  
Old February 9th 18, 11:47 AM posted to rec.bicycles.tech
Sepp Ruf
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Posts: 207
Default Battery Replacement on Lights with Internal Li-Ion Batteries

John B. wrote:
On Thu, 8 Feb 2018, Frank Krygowski wrote:
On Thursday, February 8, 2018, Joerg wrote:


"Joerg" wrote:
On 2018-02-06 18:56, Frank Krygowski wrote:


Some of my bikes have dynamos that are 30 years old. They just keep
going and going and going...


30 years? That's nothing! I remember that even 30 years ago, they just
didn't make 'em like they used to.

Until you get to a red traffic light, to a stop sign or into a traffic
jam. The perfect spot at night to get hit by a car driver who didn't
see you because you were on the only unlit vehicle around.


What happened to your CSPC reflector set that guarantees your safety, Jorge?
Swapped it for brewing supplies?

All it takes is you standing in the left turn lane and some soused guy
in a hurry cutting across that area, seeing you about one second before
impact.


I'm sure you or a direct FOAF have witnessed plenty of such incidents, both
in the Low Countries and in Gnarly Joerg County, actually leading to crashes
and grave injuries.

Except, of course, that's all false.


Because drivers are actually using headlights and looking when they are in a
hurry? Or is it a paradoxical of traffic density ("Nobody goes there
anymore. It's too crowded"?)

https://www.cyclinguk.org/cyclists-l...ng-regulations
The post is dated Thursday, 19 October 2017

And claims in part:

^^^
IFTFY.

"Dynamo powered lights are legal even though traditionally they have
gone out when you stop (modern dynamo systems have 'standlight'
technology which means that the light stays on for a while after you
have stopped - another German legal requirement). In the UK it is
legal to have a light turn off when you stop."


Just as in Germany, and elsewhere where reflectors are supposed to work well
enough to indicate a stationary vehicle. Unless the actual law states
otherwise, nothing illegal about riding a bicycle with a dynamo light whose
standlight feature is either inexistent or even non-functional.

Yet another argument about an imagined condition.


Half-imagined argument, too.

  #55  
Old February 9th 18, 07:38 PM posted to rec.bicycles.tech
Ian Field
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Posts: 250
Default Battery Replacement on Lights with Internal Li-Ion Batteries



"Joerg" wrote in message
...
On 2018-02-08 13:59, Ian Field wrote:


"Joerg" wrote in message
...
On 2018-02-07 13:05, Ian Field wrote:


"Joerg" wrote in message
...
On 2018-02-06 13:07, Ian Field wrote:


"sms" wrote in message
news My wife's Lezyne Deca 1500XXL stopped taking a charge, at all.
Taking
it apart, I saw that the batteries were made in July 2015. Not too
good for it to stop working that soon. These lights don't have
user-replaceable batteries, but by removing two screws I was able to
open it, and the battery pack does have a connector on it so at
least
they didn't solder it directly to the printed circuit board.

It's a 2 cell 18650 pack with the batteries in parallel, and a
protection circuit board shared between the two cells. The cells are
allegedly 2800mAH, for a total of 5600mAH. The closest I could find
on-line was a 2x2600mAH parallel pack
https://www.amazon.com/dp/product/B003SH4BV6.

I moved the connector from the old pack to the new pack, plugged it
in, and closed it up. Seems to work fine now.

My favourite is recycle bin rescues - with a £0 price tag; life
expectancy isn't something to get traumatised about.

Most laptop packs are 2 or 3P-3S, you can split them up as series or
parallel pairs A/R.


In many areas they won't let you dive into recycling bins. You'd
almost have to lie in wait, dart out and yell "Yo, don't hand over
that laptop just yet!". Otherwise when it's in there it's in there and
not coming back out.

Most don't take any notice - one that said no has the bin next to
customer service desk, reconnaissance on the way in - anything interest
and i make use of the seating and wait for the clerk to nip out.


In the country you live in maybe. In the US there may be a nasty
surprise waiting when trying to leave the store with the treasure,
later followed by a police cruiser for a ride into town but not to the
destination you intended.


Someone might drop packaged security tagged batteries in there.


No, just the regular recycling stuff. It's illegal to pilfer and carry
out. Plus the store wants to avoid it for liability and fraud reasons. All
it takes is the hidden security camera trained on that bin and they'll
nail you at the entrance.


The shop that said no for those reasons so far hasn't done so.

the shop with the unwisely placed bin - I put a rescue laptop pack on the
counter with my purchases and the checkout girl tried to scan it, i told her
where it came from and she just shrugged.

The last shop on my way across town usually requires a sit down to rest
before completing my journey - the seat is right next to the bins. Someone
had dumped a carrier bag of assorted batteries next to the bins - what was
any use to me took care of what isn't supposed to go in the tubs. no one
took much notice while I sorted through them and tipped the remainder into
the tubs. The security guard usually waits in that corner, but he spotted
something across the store that he needed to look in. I'd asked him on a
previous occasion and he asked one of the store staff - they said OK, so now
I just go for it.

  #56  
Old February 9th 18, 07:40 PM posted to rec.bicycles.tech
Ian Field
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Posts: 250
Default Battery Replacement on Lights with Internal Li-Ion Batteries



"Joerg" wrote in message
...
On 2018-02-08 16:01, Frank Krygowski wrote:
On Thursday, February 8, 2018 at 4:14:47 PM UTC-5, Joerg wrote:
On 2018-02-08 12:20, AMuzi wrote:
On 2/8/2018 2:08 PM, Joerg wrote:


Those 2.4W bulbs were a joke. My bikes (after my teenage
years) always had better lighting than that. Now it's all
LED on my bikes but the real stuff with more than 500 lumens.


For years with a Margil cover or, after a Krygowski mod with O ring,
and
without a switch (always on) I have no complaints about function or
longevity. YMMV.


How much does that O-ring reduce the drag? In the old days (with a real
power bus on the bike) I often rode the first miles with the dynamo off
because of the drag. I only put it back to the wheel when the "steam
gauge needle" (remember those?) got too close to the red range.


First, the terrors of dyno drag are mostly a myth. This article deals
with it:
http://www.myra-simon.com/bike/dynotest.html
"the slowing down has more to do with psychology than the actual power
required
to turn it."
and
"All of the generators were easier to turn than riding up a 1 in 300
slope.
Another way of putting that is a rise of 18 feet per mile; and there's
quite a
cluster of sidewall and hub-driven models around the 1/500 line, or 10 ft
per
mile."


Well, take another look at your link. I routinely ride at 30km/h at which
bottle dynamos waste 15W or more. That is nothing to sneeze at.


Bottle dynamos also tend to slip if wet or muddy.

  #57  
Old February 9th 18, 07:42 PM posted to rec.bicycles.tech
Ian Field
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Posts: 250
Default Battery Replacement on Lights with Internal Li-Ion Batteries



"Frank Krygowski" wrote in message
news
On 2/8/2018 3:08 PM, Joerg wrote:
On 2018-02-07 07:01, AMuzi wrote:
On 2/7/2018 12:06 AM, Tosspot wrote:
On 07/02/18 03:56, Frank Krygowski wrote:
On 2/6/2018 1:52 PM, sms wrote:
My wife's Lezyne Deca 1500XXL stopped taking a charge, at
all. Taking it apart, I saw that the batteries were made
in July 2015. Not too good for it to stop working that soon.

Some of my bikes have dynamos that are 30 years old. They
just keep going and going and going...

I bet the lights don't, as he peers at a collection of
CYOs[1] and a recently defunct Flat-S. Tbf the Flat S is
around 7 years old.

[1] Not one lasted 18 months, they simply aren't waterproof
imho.

My regular glass bulb lamps go 6~8 years between bulb failure in daily
use. YMMV


Ye olde 2.4W + 0.6W with a dynamo? When riding at a good clip, meaning
north of 15mph, those never lasted much longer than a month for me. Even
if they didn't blow their filament right away the bulbs turned black
inside and became dimmer than they were already to begin with. When I was
a teenager I started equipping my bikes with what the automotive industry
already understood over 100 years ago, brighter lights, a battery and
charging system. Soon the German police wanted to give me a ticket for
"non-standard" lighting. Luckily by that time I was a Dutch resident and
they had to let me go.

Those 2.4W bulbs were a joke.


I think you missed about three generations of dynamo lighting technology.

My first dyno had a vacuum bulb. It was terrible at lighting the road, but
fine as a "be seen" light, better than the battery lights available at the
time. Yes, the bulb blackened a bit after a while. That meant the bulb
needed to be changed. And yes, it wasn't wonderful overall; but at that
time (early 1970s) I knew of no really good bike light.


Most bulbs have vacuum - some Sturmey Archer ones were gas filled.

  #58  
Old February 9th 18, 07:51 PM posted to rec.bicycles.tech
Ian Field
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Posts: 250
Default Battery Replacement on Lights with Internal Li-Ion Batteries



"Joerg" wrote in message
...
On 2018-02-08 14:05, Ian Field wrote:


"Joerg" wrote in message
...
On 2018-02-06 18:56, Frank Krygowski wrote:
On 2/6/2018 1:52 PM, sms wrote:
My wife's Lezyne Deca 1500XXL stopped taking a charge, at all. Taking
it apart, I saw that the batteries were made in July 2015. Not too
good for it to stop working that soon.

Some of my bikes have dynamos that are 30 years old. They just keep
going and going and going...


Until you get to a red traffic light, to a stop sign or into a traffic
jam. The perfect spot at night to get hit by a car driver who didn't
see you because you were on the only unlit vehicle around.


AFAIK: dynamo lighting is illegal in the UK for exactly that reason.


All it takes is you standing in the left turn lane and some soused guy in
a hurry cutting across that area, seeing you about one second before
impact. Of course, Frank won't understand that but luckily your lawmakers
did.


UK car drivers seem to be wary of unlit cyclists and give them a wide berth.

I used to joke that bicycle lights were magic charms to ward off evil car
drivers - now i joke that they're target indicators for car drivers.

  #59  
Old February 9th 18, 07:57 PM posted to rec.bicycles.tech
Ian Field
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Posts: 250
Default Battery Replacement on Lights with Internal Li-Ion Batteries



"Sepp Ruf" wrote in message
news
John B. wrote:
On Thu, 8 Feb 2018, Frank Krygowski wrote:
On Thursday, February 8, 2018, Joerg wrote:


"Joerg" wrote:
On 2018-02-06 18:56, Frank Krygowski wrote:


Some of my bikes have dynamos that are 30 years old. They just keep
going and going and going...


30 years? That's nothing! I remember that even 30 years ago, they just
didn't make 'em like they used to.


An old Raleigh I had might possibly have been older than me.

After several back wheel failures I ordered a rim and SS spokes - having
never got around to finding a wheel builder, I outed it on a free recycling
group as a restoration project.

As I'd welded a lamp bracket to the forks, a replacement set was thrown in
with it.

  #60  
Old February 9th 18, 07:58 PM posted to rec.bicycles.tech
Ian Field
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Posts: 250
Default Battery Replacement on Lights with Internal Li-Ion Batteries



"Frank Krygowski" wrote in message
...
On Thursday, February 8, 2018 at 5:06:00 PM UTC-5, Ian Field wrote:
"Joerg" wrote in message
...
On 2018-02-06 18:56, Frank Krygowski wrote:
On 2/6/2018 1:52 PM, sms wrote:
My wife's Lezyne Deca 1500XXL stopped taking a charge, at all. Taking
it apart, I saw that the batteries were made in July 2015. Not too
good for it to stop working that soon.

Some of my bikes have dynamos that are 30 years old. They just keep
going and going and going...


Until you get to a red traffic light, to a stop sign or into a traffic
jam. The perfect spot at night to get hit by a car driver who didn't
see
you because you were on the only unlit vehicle around.


AFAIK: dynamo lighting is illegal in the UK for exactly that reason.


Baloney.



AFAIK means I was told that and didn't bother studying the regs myself.

 




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