You should have that anyway! Don't depend on it, though. Keep the battery in good condition so it works for a long time.
Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Wed, Jul 12, 2017 at 10:52 AM, Chuck McCown <[email protected]> wrote: > Or buy one of those jump start in a box things in the event you do drain > it too much accidentally. > > *From:* Josh Luthman > *Sent:* Wednesday, July 12, 2017 8:45 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] OT: Road Trip Battery > > Xbox One S looks to be ~105 watts at full load from the first few > websites. I can see the laptop being 50 watts. > > On a lot of vehicles all the 12v outlets are on one fuse, be aware of that. > > If you only want say 300 watts why not get a 1000 watt inverter, fuse it, > and throw on a PriorityStart so you don't kill the battery? Should be like > $400 total. > > > Josh Luthman > Office: 937-552-2340 <(937)%20552-2340> > Direct: 937-552-2343 <(937)%20552-2343> > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > On Wed, Jul 12, 2017 at 2:21 AM, Sterling Jacobson <[email protected]> > wrote: > >> I think the alternator is buried in my Toyota Sienna, so I’m not going to >> mess with it, or a second battery I guess. >> >> >> >> I’ll just live with the combined 100-120w restriction on all the outlets >> in my car combined. >> >> >> >> I suspect the alternate is bigger than norm just because of that >> allowance given to the two AC plugs and DC plugs. >> >> >> >> I might try and sneak in a 50W computer for serving videos. Or maybe an >> Xbox One S that I think runs around 50-60W. >> >> >> >> As long as the kids aren’t all charging their devices at the same time, >> lol! >> >> >> >> *From:* Af [mailto:[email protected]] *On Behalf Of *George Skorup >> *Sent:* Tuesday, July 11, 2017 11:28 PM >> *To:* [email protected] >> >> *Subject:* Re: [AFMUG] OT: Road Trip Battery >> >> >> >> Alternator rating = rotor speed, not engine RPM. Crankshaft pulley to >> alternator pulley ratio is usually like 3:1. So 2k engine RPM = 6k >> alternator RPM = max power. Probably varies by model/mfg. Yeah, idle is >> usually gonna be a little bit less. A high-output alternator is the better >> choice. You can screw around with pulley ratios for more power at idle, but >> you run the risk of over-driving the alternator at higher engine RPM. IIRC, >> ~18-20k RPM is ungood for it. >> >> My '11 Silverado has a 145A alternator. Dual rectifiers. Maybe triple. I >> forget. Idle=600 RPM. Still produces at least 110A based on my clamp-on >> ammeter and a bad battery that always pulled about 90A. Probably bad cells. >> Made it 7 years. New battery pulled around 100A for 10 minutes or so to top >> it off. The typical commute of 15-30 minutes should be ample time to >> maintain a battery that's in decent shape/age. The law of averages, that's >> what the auto mfgs aim for. Most people don't need 180A at idle, just like >> most of our customers don't need 1Gbps, or 100Mbps, all the time.. or ever. >> >> On 7/11/2017 9:05 PM, Adam Moffett wrote: >> >> My '04 Hyundai Accent has a 90 amp alternator. ....though I never did >> figure out how many RPM's they assume when giving you that rating. I read >> some conflicting facts on that. >> >> >> >> Anyway, I have 1000 watt inverter and I've had approx 600 watts on it >> while idling for several hours. I can't prove whether the alternator kept >> up or the battery was slowly draining. >> >> >> >> >> >> >> >> ------ Original Message ------ >> >> From: [email protected] >> >> To: "Animal Farm" <[email protected]> >> >> Sent: 7/11/2017 8:49:23 PM >> >> Subject: Re: [AFMUG] OT: Road Trip Battery >> >> >> >> If you install the isolation diodes, then yes. But that only prevents a >> dead starter battery. If you have 3-4 devices all using 50 watts, and you >> have a 50 amp alternator, you only have 600 watts total. The air >> conditioner blower is going to take probably 200 watts, the onboard >> electronics perhaps 100 watts. So maybe 300 excess. I wouldn’t count on >> even that much. I have seen aux connectors fused at 15 amps so that is 180 >> watts. >> >> >> >> My dell has a 90 watt power supply. So two of those running non stop? >> >> >> >> *From:* Jaime Solorza >> >> *Sent:* Tuesday, July 11, 2017 6:32 PM >> >> *To:* Animal Farm >> >> *Subject:* Re: [AFMUG] OT: Road Trip Battery >> >> >> >> Not at all...Pep Boys and others sell a simple to install dual battery >> inverter and heavy duty fuse system. A good quality inverter would work >> well and no big thing to install. I use this for wiring up inverters for >> vans and buses to a solenoid to start inverter when vehicle is started. >> Prevents draining battery.. >> >> Jaime Solorza >> >> >> >> On Jul 11, 2017 6:14 PM, "Sterling Jacobson" <[email protected]> >> wrote: >> >> I've got a cross country family trip from Utah to New York coming up and >> I want to wire up a secondary battery to my Toyota Minivan. >> >> I know, maybe I'm crazy, but I want to be able to run all our electronics >> on the trip, including maybe a computer for serving up video (another >> topic). >> >> I want it on a secondary system so I get more power and don't kill the >> main car battery. >> >> From what I gather I would need a sealed battery to avoid fumes (mostly). >> I would need a some sort of control system so the battery can charge from >> the alternator, but not drain the main battery. >> I need high gage wire between the batteries/alternater along with fuse, >> and also between secondary battery and large inverter for AC power. >> >> Probably not possible to shove another battery under the hood of the >> mini-van, but I haven't checked. >> >> Is this a silly idea? >> >> >> > >
