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How long does it take to charge the red ultrafire 18650 brc 4000 Mah rechargeable battery?

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  • Cameras Master
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This side tells you everything about charge and discharge of the ultra fire gold, but red is almost the same. Test of UltraFire BRC18650 4000 mAh Brown Gold

Posted on May 12, 2014

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6ya6ya
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Posted on Jan 02, 2017

vega
  • 551 Answers

SOURCE: Sony DSC-P93 battery replacement question

NiMH batteries. You can use the larger mAh AA. It has more capacity and should give you longer service before needing recharge. The battery manufacturers recommend that you do not mix the batteries. i.e. don't use mAh 2100 and mAh 2500 as one set, use all 2100 or all 2500 as one set.

Posted on Sep 08, 2005

sangita
  • 32 Answers

SOURCE: Battery Problem

Hi, thsi indicate the internal short in circuit which draining excess current and battery get discharged. You nee dto chek internal circuit from technical expert. some component must be short . let em knwo when it solved. thanks Sangita

Posted on Jul 08, 2007

SOURCE: battery drains quickly

"It shouldn't do that." But you already know that. Even with everything "on" in the camera it still shouldn't do that.

I think you need to try a) alkaline batteries and b) new NiMh batteries. If it still persists then your camera has a deeper problem and needs to be sent in for repair.

Posted on Dec 19, 2007

SOURCE: my vivitar 4000 has a rechargable battery, and i charge it up and it doesnt last that long, where do I get a new rechargable battery from , I am in a wedding next week and would like to use my camera.

Pic Stop Battery Eqivalent NP60

Posted on Aug 02, 2008

leepania
  • 1099 Answers

SOURCE: batteries don't hold charge any more.

The batteries will only last for about 200 recharges. Depending on how you use the camera and batteries. Try with new batteries.

In order to buy new batteries contact KODAK:
http://www.kodak.com/eknec/PageQuerier.jhtml?pq-path=14563&pq-locale=en_US&_requestid=3490

Alternatively buy them directly online.
http://store.kodak.com/store/ekconsus/en_US/list/Accessories/Batteries__Chargers/categoryID.28887900

Posted on Jan 21, 2010

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New ultrafire 18650 4000 mah li-ion battery. How do I let it charge for


Normally you should charge a battery for 14 hours on one tenth of the capacity. So if you have a charger capable of 400 mA/h you should leave it on the charger for 14 hours.

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I have a philips se 455 cordless phone that won't hold the charge at all and was considering getting rid of it until I saw this site and read that I should be using rechargeable batteries ? Will this...


well it very well may see they rate batteries in mah normal duracells and thing are usally only 800-900 mah milli amp hours a good rechargable battery can be from 2200mah i have seen them up to 3200 mah for phones so yes a rechargable battery would last longer in the phone as they have a higher mah or in simple english longer discharge time


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Can my makita bl1830 battery be repaired if it does not hold charge anymore


This battery has a known design defect that causes premature failure. The battery is still probably good, but the safety circuit n the battery spuriously locks it, due to a bug. Once locked, it won't charge in the Makita charger (flashing red and green lights). Makita knows about this problem but so far is not actively recalling the batteries. Makita will replace the pack if the charge count is under 150 (some people say 300?) regardless of warranty status, but you have to take or mail it to a Makita Service Center -- the dealers won't handle this unless it's in warranty.
http://www.makita.com/en-us/Modules/Service/ServiceCenters.aspx

If Makita won't fix it, you can try to repair it. If the red and green lights are flashing, the battery is probably locked and cannot be repaired in a way that will let it be charged in the Makita charger (but it can be charged in off brand chargers). Buy a clone charger on eBay for $60 and try it. If it charges, just use it, no repair needed.

Be aware that lithium batteries do lose capacity permanently at a rate of about 20% per year. So, 3-6 years is about the best battery life you can expect - from date of manufacture, so if it sat in the store a while that adds. Makita derates the cells to allow for some shelf life (down from 2400 Mah to 1500 Mah rating).

If the battery is weak, and only gives brief usage, you can replace some of or all of the cells in the battery. These are expensive and worth repairing. See this video:
http://www.youtube.com/watch?v=Z5taguEdlkY

If just 1 or 2 cells are weak, you can replace them with the same Sony 18650 size 2400 Mah capacity battery, green sleeve. The Sony's are not sold retail, and are hard to find other than from another Makita pack or from some laptop packs. If more are weak, you're better off just replacing all of them with new 18650 2400 Mah (or higher) batteries with tabs. Look for Tenergy or other quality brand.

Hope that helps.

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You need high-power re-chargeables - 2300 mAH or 2500 mAh

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Initial charging time


hi there
the first charge should be around 12 hours, this then teaches the battery its max load.
ignore the charger if tells you its charged after a couple of hours.
after the first charge use as normal.

hope this helps

beergut707

Oct 09, 2008 | Sony AA Nimh 2500 Mah Rechargeable Battery

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Amperege of 580 EX-II


Interesting Question!
The rating in milliamps is a matter of battery capacity and charging rates. The higher the better as you will get more flashes per charge as long as you have the correct charger to match the batteries’ capacity and use the correct charging times. Aside from this issue of duty cycle between charges- this has no effect on the power of the flash unit as to output. This cant burn out or damage the circuitry.

The issue here is VOLTAGE. Most AA alkaline batteries provide 1.5 volts. Most rechargeable AAs provide 1.2 volts. We are looking at a voltage differential of 1.2 volts (a 20% deficit) if 4 batteries are required. This MAY cause slower recycling times in order to attain a full charge for each shot. In SOME units that can cause a bit if overheating due to strain on the step up circuitry.

It so best to check with the manufacture or distributor of you flash unit before purchasing you rechargeable batteries and charger. If you units have a built in charging circuit this can definitely be problems if there is a mismatch in charging rates and voltage. If this is the case be sire to check your manual or with the manufacturer or distributor- there must be a list of compatible batteries.

Ed

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