Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-13 Thread Lee Hart via EV
Cor van de Water via EV wrote: Lee, I can see that you did not proof-read your mail, Thanks, Cor! Egads, I'm typing faster than I'm thinking. Your corrections are all right on the money. :-) - the two zeners are chosen so the sum of the voltages is the desired output voltage *plus* the

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-13 Thread Cor van de Water via EV
Subject: Re: [EVDL] Lead Acid charging...(trickle overcharging?) Cor van de Water via EV wrote: > For many years, I have used a "take-out" UPS battery > to keep my internet, WiFi and VoIP powered through regular power > outages, always floating it to 13.5V... I can second

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-13 Thread Lee Hart via EV
Robert Bruninga via EV wrote: What happens when you might forever overcharge a CAR battery with 30 mA (during daylight). Most car batteries are flooded (i.e. not sealed). If you continuously charge them, once they reach "full" they simply convert the excess charging current into heat and

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-13 Thread Lee Hart via EV
dovepa via EV wrote: Isn't that what a trickle charger does? I know lots of people who leave them on all the time. People mix up "float" and "trickle" chargers all the time. But they are quite different devices. A "trickle" charger delivers a more-or-less constant CURRENT, regardless of

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-13 Thread Lee Hart via EV
Cor van de Water via EV wrote: For many years, I have used a "take-out" UPS battery to keep my internet, WiFi and VoIP powered through regular power outages, always floating it to 13.5V... I can second Cor's advice. 13.5v is a good float voltage; better than the usual 13.8v you'll find in

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-12 Thread Cor van de Water via EV
Re: [EVDL] Lead Acid charging...(trickle overcharging?) On 12 Jun 2016 at 5:28, Robert Bruninga via EV wrote: > I added an unregulated solar panel that typically produces only 30 mA to a > very remote cabin car battery deep in the woods. The charge rate will give a > 2 hour per wee

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-12 Thread dovepa via EV
ussion List <ev@lists.evdl.org> Subject: Re: [EVDL] Lead Acid charging...(trickle overcharging?) New question. What happens when you might forever overcharge a CAR battery with 30 mA (during daylight). I added an unregulated solar panel that typically produces only 30 mA to a very remo

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-12 Thread Michael Ross via EV
Float voltage is likely higher than 13.5V but you should see what the manufacturer says. Keep it below the float voltage rec, at 30mA (the current for two bright LEDs and 0.4W) you are likely not harming. It is correct that when charged excess generates heat and gassing. If you are ever concerned

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-12 Thread EVDL Administrator via EV
On 12 Jun 2016 at 5:28, Robert Bruninga via EV wrote: > I added an unregulated solar panel that typically produces only 30 mA to a > very remote cabin car battery deep in the woods. The charge rate will give a > 2 hour per week use of the lights. > > But what happens if no one uses the cabin

Re: [EVDL] Lead Acid charging...(trickle overcharging?)

2016-06-12 Thread Robert Bruninga via EV
New question. What happens when you might forever overcharge a CAR battery with 30 mA (during daylight). I added an unregulated solar panel that typically produces only 30 mA to a very remote cabin car battery deep in the woods. The charge rate will give a 2 hour per week use of the lights.

Re: [EVDL] Lead Acid charging.[ now, EV conversions forever!]

2016-06-10 Thread Robert Bruninga via EV
To quote a 1931 move... ITS ALIVE! I love the simplicity of this Honda Civic conversion. WIth only an analog voltemeter (I hate the near infinite impedance of DVM's for troubleshooting dirty, ugly stuff), I'm only one more bug away from the annual drive around the block. Tonight found: 1)

Re: [EVDL] Lead Acid charging... and AC disconnects?

2016-06-10 Thread Lee Hart via EV
Robert Bruninga via EV wrote: For one thing, you can test the controller on the bench, with a light bulb in place of the motor, a 5k potentiometer for the throttle pot, and a simple DC power source for input power. Bingo! Ill disconnect the motor and hook up a few thousand watts of lights

Re: [EVDL] Lead Acid charging...

2016-06-09 Thread Roland via EV
org> To: Electric Vehicle Discussion List<mailto:ev@lists.evdl.org> Cc: Bob Bruninga<mailto:wb4...@amsat.org> Sent: Thursday, June 09, 2016 8:36 PM Subject: Re: [EVDL] Lead Acid charging... Old Honda Civic EV conversion troubles (after 2 years of abandonment). 1) PbAcid batteries

Re: [EVDL] Lead Acid charging...

2016-06-09 Thread Lee Hart via EV
Robert Bruninga via EV wrote: Old Honda Civic EV conversion troubles (after 2 years of abandonment). Hi, Robert. These all sound very normal. 1) PbAcid batteries are stll hissing 8 hours after the first charge in a year was removed? All ten batteries were between 13.5 and 14.5 under charge

Re: [EVDL] Lead Acid charging...

2016-06-09 Thread Robert Bruninga via EV
Normally gulf cart > shops have all the equipment and supplies to do this job. > > Roland > > > > - Original Message - > *From:* Robert Bruninga via EV <ev@lists.evdl.org> > *To:* Electric Vehicle Discussion List <ev@lists.evdl.org> > *Sent:* Tue

Re: [EVDL] Lead Acid charging...

2016-06-07 Thread Roland via EV
mailto:ev@lists.evdl.org> Sent: Tuesday, June 07, 2016 8:21 AM Subject: [EVDL] Lead Acid charging... Finally, Back to Lead acid and a FOUR WIRE EV! (Something I can maintain)! (4 wires, means 2 from the battery, and 2 to the motor and a controller in the middle. Done)... I have given up on mode

[EVDL] Lead Acid charging...

2016-06-07 Thread Robert Bruninga via EV
Finally, Back to Lead acid and a FOUR WIRE EV! (Something I can maintain)! (4 wires, means 2 from the battery, and 2 to the motor and a controller in the middle. Done)... I have given up on modern EV's (two THINKs) who are BRICKS because the computer in them thinks something is wrong and they