I have bunch of TDA2003 (class AB) amp ICs and I would like to make some amplifiers with them. One would be stationary bridged 20w version and one portable version. However I'am a beginner and I never had expierence with batteries.
- Is this IC efficient for working on battery?
- I'am planning on buying 5ah battery, how long would such battery last for me? Maybe 5ah is an overkill? 4-6h of constant work is what I need. (NOTE: I'am not going to blast it on full power all the time. I guess 50% of power ussualy)
Battery charge time, size, weight doesn't matter for me at all. Price and efficiency what matters