how long does the 12v battery last? with regular use of course?
1479164
I've only had this for about 3 weeks and the battery is still in good condition.
1479165
We've had it for a year so far and it works great. Haven't had to change the battery yet. It gets pressed regularly as the postman often rings to let us know packages are outside. Hope that helps. I have the chime unit tucked away behind a corner of our molding and it sounds off nicely through the entirety of our house.
201342
Mine is new, so I haven't had a chance to test battery life. But, Yes, it is more powerful for cleaning than the 12 volt.
808415
at 12 volts, the 10 watt light will draw just over 0.8 amps. The battery is rated at 5 amp-hours (5 amps for 1 hour, 1 amp for 5 hours, etc). So, under ideal conditions you will get just about 6 hours. Add in life's little inefficiencies and an assumption of 5 hours would be reasonable, depending on your exact configuration. Good luck.
1831114
I find it to be about 1-2 years. Dont charge unless it is dead. Dont leave it charged over winter. If you keep it in 60-80 degree temperatures it will last longer. If you have this battery already cut off the wires and solder it onto the one in the link below. You will save 75%. 12V 5AH SLA 187 FASTON
589427
Once in a while, I use mine where there is no 110 volt power. With two 9-volt rechargeable batteries in parallel (producing 9 volts) I get about 24 hours of use.
1635454
probably about 3 plus hours -we use it for travel so it is usually being plugged in every night or during use. Never have had a problem with too little battery.
1451716
No less than 12 hours, no more than 16 hours. (We had the manual from the original battery :)
1362621
battery life is pretty good about 75 minutes. I will probably purchase an extended capacity battery
539498
I agree for me last around 40-50 originally. Over time I'm guessing due to battery wear its portability duration is greatly reduced. I've had mine a couple years with moderate to heavy use. Doesn't seem to last over 24 hrs now without a recharge.
867446
A prior review states ... " Unfortunately, the unit is sold with a cheap 12 Volt, 7.0 Amp-Hour internal battery that cannot hold up under the rigors and demands put on it by the general consumer. Anyway, the battery in any of these types of portable devices doesn't last forever and will eventually have to be replaced. Think of is as normal maintenance, to be done every two to five years, even with the best of batteries. But a simple change to a 12 Volt, 8.5 Amp-Hour, high-rate replacement battery will greatly enhance its performance. Without going into a stuffy brain-dump: A simple 21% increase in Amp-Hour capacity (to 8.5 Amp-Hours) will double the amount of work the fully charged battery can do, under load, such as the internal 12 Volt compressor motor. The "high-rate" designation is also a type of battery that is designed to take heavy loads without damage -or shortened battery lifespan." I have not actually replaced the battery, but it has every appearance to be replaceable
1828093
I never let my battery die completely, but I would say it lasts on my laptop about 4 hours.
437744
I'd say mine lasts just under 3 hours at the lowest power levels. The battery is easy to remove, so you can always buy a second battery to double your life.
1243974
For normal use the laptop gives you 2 hours and half, and for extreme use just like an hour, now for the battery life I think is larger than 2 year, since I bought this laptop in september of 2012 and the battery died at november 2014, but I have been using it in very extreme conditions for like 16 hours a day every day since I bought it, playing video games, editing videos, hydrological modelling, running virtual machines and it never defraud me.
1008833
Mine goes about 3 hours continuous use. It actually lasts longer than I expected!
1534749
Mine lasts about 7~8 hours for regular use when I use the Quite Office Setting.I know it's still better than any other laptops as to battery life.
478377
power draw is 4 amps @ 12 volts. So if you have an 80 amp-hr battery you'll get 20 hours.
825934
I haven't exactly timed how long the battery lasts, but depending on how much I use it, I generally need to charge it every day. Naturally I turn it off when I'm not using it, but I would say once a day with normal use.