|
|
Thread Tools | Display Modes |
#51
|
|||
|
|||
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. |
Ads |
#52
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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
|
|||
|
|||
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. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Dynamo Lights viz Battery Lights in snow qand slush? | Sir Ridesalot | Techniques | 6 | March 4th 15 10:36 PM |
Cheap lights using CR123 batteries | Tom Anderson | UK | 3 | January 18th 11 02:33 AM |
Rechargable Cells/batteries for Lights | Keiron Kinninmont | Techniques | 8 | December 25th 06 11:58 PM |
Lights without batteries? | Steve Watkin | UK | 9 | May 16th 06 10:04 PM |
Rechargeable batteries with LED lights | David Ward | Techniques | 8 | March 17th 05 03:40 AM |