Nov 25, 2009 · Wiki: Nickel-iron battery - Wikipedia, the free encyclopedia There is also a manufacturer in China which makes them: **broken link removed** Inside every little problem, …

Nov 25, 2009 · I have built very successfully, both a Zinc Iron, and also a Nickel Iron battery. Nickel iron works well but the Zinc Iron battery was more of a success, in that by adding other …

Mar 12, 2023 · I think when a lead-acid battery has failed, for whatever reason, the likelihood of bringing it back for significant further useful life is small and not worth the cost and effort.

May 24, 2015 · Made an element and soldering tip for my Weller WPS18MP soldering iron. Used #31 insulated nichrome element wire, 8 1/2" long, measures 6 ohms, crimped each end …

Jun 22, 2011 · Hi all! I have a hair trimmer which is powered by an AA NiCd rechargeable battery. Over time the battery's capacity went too low. The trimmer still works with it but only for a short …

Jan 7, 2025 · For other battery types the principle is generally the same, though with different voltages etc: Bulk charge at constant current, then the charge completes at constant voltage, …

Nov 13, 2024 · It is established that for NiCd batteries, discharging to a voltage below 0.9V per cell frequently works better for restoring the battery's performance. In addition to this I have …

Jun 3, 2016 · Click to expand... That sounds like a normal car battery. Calcium is added to many lead acid batteries theses days to increase the strength of the plates, but it does not alter the …

Dec 28, 2008 · I am looking for a circuit ,12V, 40Amp load tester for a car battery I would like to build one. Can you help me with this request. have a good new year Thank you, Greg.

Feb 9, 2024 · I have a Samsung Onyx Studio 4 bluetooth speaker I use sporadically. I'd use it at work but the battery only lasts 3 to 4 hours depending on volume level. Would a DeWalt 20v …