A String Posted October 3, 2004 Share Posted October 3, 2004 I bought a replacement battery for my cordless phone. Same voltage but when I got it home I noticed the mAh was wrong. My original battery is a 400mAh and this one is a 300mAh. I know it's safe to go one way but not the other...does anyone here know if I can safely use this battery? BTW, I got it for $2.00 and it was the last one so I'd really like to use it if possible. Craig Stringnetwork on Facebook String Network Forum My Music Link to comment Share on other sites More sharing options...
Reverse the Curse Posted October 3, 2004 Share Posted October 3, 2004 sorry dude, I have no idea what your talkin 'bout. The forumite formerly known as Cooper. "Life is what happens to you while you're busy making other plans." John Lennon "When the power of love overcomes the love of power the world will finally know peace." Jimi Hendrix "Knowledge speaks, but wisdom listens." Jimi Hendrix Link to comment Share on other sites More sharing options...
A String Posted October 3, 2004 Author Share Posted October 3, 2004 mAh refers to the charge a battery will hold. My dilemma is, I am unsure how the charger knows when to stop. Does it "sense" the battery is full or does it just keep going until a certain, predecided level is reached? If it's a case of the latter, then my 400mAh charger will try to charge the 300mAh battery forever...I think. Just wondering if anyone can fill me in on this. Craig Stringnetwork on Facebook String Network Forum My Music Link to comment Share on other sites More sharing options...
mwestenberg Posted October 4, 2004 Share Posted October 4, 2004 Should be safe, the rating is usually for discharge, in other words, the amount of juice it will provide. Lyrics. Wasted space between solos. I can't tell you, but I can play it for you. Link to comment Share on other sites More sharing options...
bluesswing Posted October 4, 2004 Share Posted October 4, 2004 I am almost sure you can use the battery safely. Phones are most often (at least in my household) put back into the charger after a call has ended and the battery can still be practically fully charged. My understanding is that all chargers stop charging when the current through the charger is small enough (and the voltage of the charged battery is high enough). Link to comment Share on other sites More sharing options...
pauldil Posted October 4, 2004 Share Posted October 4, 2004 A String, I found this on Google. Hope it helps. What does mAh stand for? mAh stands for milli Ampere hour or milli Amp hour. It is a measure of a battery's energy storage capacity. If you think of a battery as a small fuel storage tank, which in a sense it is, mAh a measure of how much "fuel" the battery holds. (This is roughly comparable to using gallons to measure how much fuel a gas tank can hold. The more gallons of capacity, the more fuel the tank can hold.) With a battery the higher the mAh rating the more electrical energy it can store. While it is useful to think of mAh as being the rough equivalent to gallons, the analogy is not a perfect one. Different types of batteries use different methods to measure mAh so comparing the mAh rating of one type of battery, say an alkaline battery to another say an NiMH battery, is not always meaningful. However, in general, the mAh rating of a battery is a quick way to compare the relative energy storing capacity of one battery to another battery of the same type. Can I substitute a higher mAh battery for a lower one? If the batteries are of the same type, i.e. both are NiMH or both are Lithium-ion, then you can use a higher capacity (i.e. higher mAh) battery instead of the lower one. The reverse is also true. Using a higher mAh rated battery will allow the device to run longer on a charge. So a camera should take more pictures and a music player can play more songs. Keep in mind that it will take a little longer to charge a higher capacity battery. (Staying with the fuel tank analogy from above, it would also take longer to fill a 20 gallon gas tank than a 12 gallon tank). Paul Link to comment Share on other sites More sharing options...
Dak Lander Posted October 4, 2004 Share Posted October 4, 2004 You can use it, it won't work for you as long. That will be a huge thorn in your side. Our Joint "When you come slam bang up against trouble, it never looks half as bad if you face up to it." The Duke... Link to comment Share on other sites More sharing options...
A String Posted October 4, 2004 Author Share Posted October 4, 2004 Thanks for the help guys! I bought this thing from a dollar store for $2.00. The one in my phone right now has stopped charging properly and will only hold a charge for about 30 mins before needing to be put back on the base. If this one will hold a charge for longer then that, it will be an improvement. Thanks again guys! Craig Stringnetwork on Facebook String Network Forum My Music Link to comment Share on other sites More sharing options...
Dak Lander Posted October 4, 2004 Share Posted October 4, 2004 If it's a nicad battery, run it through it's up and down cycles. That will help keep the battery working at it's maximaum capability. They will take a "set" and fail to perform to it's intended, new, capacity. If it's a nickle metal hydride it probably won't matter and it may be better to return it to the charger as often as possible. They aren't really designed to go through the full discharge/recharge cycles. Somewhat akin to a standard automotive battery that is designed to have a certain amount of draw pulled and then be recharged, versus a deep cycle/ RV/Marine battery that is designed to withstand major discharge and recharge cycles. Not an exact analogy because of the operational differences but close enough to give you an idea of the intended usages of the different battery makeups. Our Joint "When you come slam bang up against trouble, it never looks half as bad if you face up to it." The Duke... Link to comment Share on other sites More sharing options...
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