Does Optima battery charge different

[Jim Baskin III Pa.]

Daniel,I'm on my second Optima battery and use a alternator,they charge the same as any other battery.Once my A is started I have to give it a quick rev. to excite the alternator.Upon doing that the amp gauge will go to 10-15 amp for about 30-45 seconds and then go back to 0 amp charging. If I turn the lights on the amp gauge will flicker to about 5 amps and back to 0 amps. The horn does not make the amp move at all. Hope this helps.