Does anyone has experience with replaceable battery-powered bicycle lights? For good reasons I don't want to use lights with glued-in lithium ion batteries...

I looked at an online shop, and the only options that I found was the "Cat Eye GVolt25C" and "AXA Niteline 35". They are supposed to be used with (non-rechargeable) alkaline AAA batteries, but I would very much prefer to use rechargeable batteries. Perhaps the light would just be a bit dimmer¹ with NiMH batteries (since they have a lower base voltage)? Usually I use the lowest brightness levels anyway, so perhaps NiMH voltage could suffice?

I could try NiZn batteries (which have a base voltage similar to alkaline batteries), or even AAA li-ion batteries (if this even is a thing), but I have no experience with them.

(1) My main use of the lamps should be to be seen (when I ride my bike that doesn't have a dynamo); I can see pretty well in dark light on the streets.

@mastobikes @mastobikes_de #mastoBikes #batteries #replaceableBatteries #bicycleLight

Alas, I can kind of understand now why (usually glued-in) LiIon batteries are so "popular". They are (kind of) convenient, since you don't need to worry about charging devices (since the charging is built into the lamp itself). On the other side, they are fucking insidious, since the battery and/or the charging ports can be seen as points of planned failure, so more profit for lamp sellers! 💸 Moreover, who would want to carry a second lamp (or use fiddly powerbank setups) in case the inbuilt battery doesn't suffice? I would say carrying a set of spare batteries is also quite convenient.

Another important aspect would be power drop in cold weather, and the lamps with replaceable batteries tend to not be water proof 😐

@maxi @mastobikes @mastobikes_de Towild has a few batteries with replaceable batteries such as their BR800 https://www.towildbikes.com/products/towild-br800
TOWILD BR800 bicycle headlight

About this product Super LED 800 Lumens bike light beam flooding over 500ft, anti-glare, special design side lens reflector for safer pass. Sleek aluminum alloy exterior guaranteesa stable performance that perfect avoidance such suddenly gets brighter or darker,5ft impact-resistant, anti-abrasive, IPX6 waterproof,sturdy and durable bike headlight super great suitable for all cyclists, on unlit roads, urban commuting. [VERSATILE BIKE LIGHT] icr18650 2000mAh battery (included), Low battery warning, charge this led bike light fully from any USB port, smart feature protection when charging. 5- Modes from 800 to 200 by single button switch control thats very convenient, holding power 5 seconds to lock/ unlock, double-clicking to flashing. Good as a power bank, flashlight, Camping. It is an ideal gift for outdoor lovers. [Data Display] Special add classic bike computer in the bike light set, clear 1.8 inch LCD screen, stats all your favorite pedaling rate+ speed+ altitude+ heart rate+ mileage, in max, average, min. Auto-backlight, you can easily read the datum while driving. 25 Hrs run time, IPX7 waterproof, tracks each and every moment accurately and precisely. [INTIMATE CONFIGURATION] 360rotating bracket (suitable for all handlebars)+ extra free 2in1 Gopro mount means saving your space, you can put bike headlight, bike computer, or GoPro action camera together on the 31.8MM pole, the mount is made of high carbon steel plastic, non-slip, easy install and remove. What is the most suitable bicycle light for riding? A single cars low-beam headlight is approximately 700 lumens. Now, you know that on a dark road that can be pretty bright, and honestly? 700 to 900 lumens is all you need on a bike. If you had to make it more than that, you could risk your lights being too bright, which can blind oncoming traffic. Remember that the light should also be comfortable for you to look at the road in front of you while obviously helping you see everything. If its too bright, it can create glare that is very uncomfortable. Head out in the dark with an awesome bike light attached to your handlebars and go have an adventure! Lumens: 800 lumens Battery capacity: 2000 mAh Waterproof: IPX6 Rechargeable:Type-C rechargeable Robust light body: 1.5m fall-resister High endurance time:Night flashing model up to 10 hours Support install way: bike handlebarGopro style mount Temperature Control Technology High mode use intelligence temperature control technology could change mode according environmental and speed. IPX6 Waterproof The high IPX6 waterproof rating means that it should be able to withstand the worst of winter weather. Robust light body 1.5m fall-resister

Towild