can anybody comment on how well the rechargeable battery holds up over time? i.e. how many hours of use before they won't hold an adequate charge?
522560
I've used these lights during three hour rides in daylight and had a strong output throughout. I had them on the strobe/slow-flash modes during daylight hours. I was impressed how well I could see my wife's lights from a distance, both front and back.
522561
I have been running BOTH for about 8 months now. I have NEVER rode them to die! (about 6 hours). What I DID do was to hook them both to a USB interface (under my seat) so they can both be charged at once. While this seems odd and I am sure the maker would advize against it it works remarkably well, as the headlight uses more DC than the tail light and thus draws energy equally!. AGAIN... NEVER, EVER use the headlight with a wireless computer.. it makes it go bonckers while in flash mode!
1944952
My batteries last about a month. I got a value-type pack from monoprice, so they're not the greatest, but they still last a while. Not sure why so many people are having issues, maybe the battery compartment gets wet from splashes or condensation for them?
864575
I use rechargeable AA batteries. The initial investment might seem pricey, but it takes years of use for them to wear out, making them a great deal in the long run. Seriously, about $12 for 2, 3, or 4 years of service? So much better than using throwaways!
755302
I have one of these...use it daily & can expect about 6 months to a year from it before I have to charge the batteries.I use rechargeable batteries in mine.I believe the length of time it will last, depends on how often it is used, & what the quality of the batteries are.Example: Duracell bateries will outlast store brand name batteries by a long shot....
87534
My experience is that they do not last "a year", but it's only 4 AAs. My rechargeable ones don't seem to last as long. If battery life is a concern, why not just plug it in?
449914
Carol,I've had no issues with my batteries. I bought a second more inexpensive one (different brand) also without any issues. Sometimes I get as much as 8-10 hours. Hope that helps.Ed
693685
Mine has been awesome. Charged it the first time and took it deer hunting and used it a lot without it going out or needing another charge. Have been using it here at the house to do chores in the evenings. I just charged it back up last weekend. I would comfortly say I have had it on for well over 6 hours on the initial charge. The last week here as been below zero and I have had to use it out working and it has not fadded at all. I'd ask for a replacement if at all possible.
1437034
I do not have an exact time that the batteries last. I can tell you that I've used it numerous times and haven't really had any issues with battery life.
434009
Less than 4 hours for mine. The battery really does last a long time. I've had mine for several months and use them for up to 4 hours or more at a time, a couple of days a week. I have only had to charge them a couple of times so far. I am impressed with the battery in these.
1507614
I've only had it for a week, so no battey problems yet. It lasts my whole 10-hour work day on a full charge. There aren't any instructions included abot replacing the battery, but it looks like someone else responded and said it IS user-replaceable.Li-ion should last for years, but good battery maintenance will help extend the life. For at least the first 10 cycles, I charge it fully, then drain it completely. Don't recharge when it drops to 80%, 60%, etc. The performance doesn't suffer at all even when it is almost dead. That should help you get the most life and best performance.
1364565
I charged them initially for about three hours. One of the batteries seems to take a charge overnight, but the other is pretty bad. I love the unit when it is working, but all too often, the battery goes dead without any warning. I've tried to get replacement batteries (thinking I may have a bad one), but can't find them anywhere. This is totally unacceptable! If anyone knows where to get replacements, please let me know.
492619
Hey bro...i just got mine yesterday and I've used it for so far 3 to 4 hours...and it works well...I'll make sure I put it up on exactly how many hours the batteries will last...
1884484
I have em' going every night for at least 3 or 4 hours, its been 2 months and I haven't changed em' yet. REALLY, REALLY Impressed with battery life they're still going strong - I'm really impresed with battery life
2095854
I have had mine for over a year now and they are still fine.A lithium-Ion battery shouldn't really go bad.Thay don't have a charge memory where they loose capacity every time you use them..Just don't leave them out in the cold and not charged because that does seem like it can mess them up and don't recharge until they have cooled off..
1567140
I'm using mine for that. I don't know how long to recharge because it keeps up a pretty good charge so I have not run them down all the way
1312899
I have found that the more you use these batteries the better they respond, if you use them infrequently and don't charge them at least once a month they loose their ability to hold a charge in a year. However, if you use them and charge them once a month when they don't get used, then 3 to 4 years.
2046349
I think not using them for such a long time has killed the battery. I have left regular chargeable batteries sit for a long time and they would not charge either. I think regular use is the key.