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| Thread ID: 72361 | 2006-09-10 05:03:00 | if i don't start my car for 6 days..... | lance4k (4644) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 483669 | 2006-09-10 18:07:00 | i got onee of those soler cells a little while ago. comes in handy for the spare vechile. tho a fully regulated charger is better as it stops overcharging. Here's the tech details (www.harborfreight.com) (.pdf format), and it's only got 1.5 watts at (open) voltage of 22.5VDC. I have one running constantly in the vehicle not is use...and that may be 6-months at a time, and no untoward effects yet. I checked the voltage while running on a 95% charged battery and it was well below any dangerous levels...about 60 mA. It tapered off as the battery got more charge... I think it's pretty good at self-regulation. I saw it get to 22mA at 13.4VDC, and that was a very good range as far as I care. |
SurferJoe46 (51) | ||
| 483670 | 2006-09-11 00:29:00 | www.solarcharger.com thats the dick smith one i got a while ago. so far it seems to do the job, tho its trying to charge a decent sized battery. | tweak'e (69) | ||
| 483671 | 2006-09-11 03:15:00 | The second worst thing you can do to a battery is trickle charge it . :D Especially with a cheap "battery charger", in which the voltage continues to rise past about 14 . 5 V . They all lose their electrolyte (and capacity) if they are on continuous charge at high voltage . A proper regulated (at the correct voltage) supply is OK : it will stop charging when the battery reaches that level . Some solar panels are self-regulated (32 cells for "12 volts", rather than 36), so they are quite good for seldom-used vehicles . |
Graham L (2) | ||
| 483672 | 2006-09-11 03:23:00 | Mind you, I doubt that 30 - 80 mA or so of trickle charge only during full sun will affect a lead acid battery significantly. | godfather (25) | ||
| 483673 | 2006-09-11 06:13:00 | exactly gofather, the general idea is to replace the power the battery natturally loses internally rather than charging it up. i think a decent sized solar panel mounted on the roof (and proper charger) would be handy, exspecially for those who do those small runs. i have found now and then i have to pull the battery out and charge it overnight because i don't drive long enough between starts to charge it up fully. |
tweak'e (69) | ||
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