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In Reply to: RE: An 18 amp battery isn't much power. posted by fredtr on January 14, 2017 at 16:44:27:
i ALMOST went to sears to buy a power meter as that's about the only place i think i could get a digital meter seeing both the auto & battery stores i called didn't have them, but they start at $12 for ones i could get for half that on amazon, and i REALLY wanted to get one of these $16 meters instead.when i checked to see if harbor freight had volt meters online, the only results i found were for mutimeters that start at $5. i've seen coupons for those that are free with purchase, but in maybe 1 out of 10 ads.
as it stands, i've been charging the battery for about 10 hours or more by now, and it's STILL in charging mode (under 80% charge) when the charger was saying it was at at least 80% the entire time i last charged it before hooking the new speakers up.
i'll try to see if i can find a coupon for a free multimeter. i already have 2 flashlights too many and don't need the scissors in the latest ad i saw, but i planned to go there to get a drill, some bits, solder & an iron anyways to build the system. $5 isn't a lot for a multimeter that might be useful for other things like maybe measuring amp output once i learn how to use it.
if i DID get the multimeter, it would help me test if a really nice battery tender "jump starting" charger i saw at a thrift shop works, but my experience has been electronics at goodwill NEVER work and they refuse to do "thanks for your money SUCKER!" refunds.
Edits: 01/15/17 01/15/17 01/15/17
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Follow Ups
- power meters & chargers - thump 01:50:35 01/15/17 (6)
- RE: power meters & chargers - fredtr 08:12:31 01/15/17 (5)
- the battery is at 13.15 volts right now - thump 01:18:35 01/18/17 (4)
- RE: other points... - thump 01:45:45 01/18/17 (3)
- that's weird... the left channel is +6dB & out of phase - thump 02:14:36 01/18/17 (2)
- RE: that's weird... the left channel is +6dB & out of phase - fredtr 06:45:58 01/18/17 (1)
- RE: that's weird... - bare 10:49:33 01/18/17 (0)