I like the form factor of these.

http://www.ebay.com/itm/NASA-Clipper-BM1-Battery-Monitor-Instrument-12-Volt-
/351647928858?hash=item51dfd9921a:g:0nYAAOxy5jxSbmEk

These have a good reputation:

http://www.ebay.com/itm/Victron-Energy-BMV700-Precision-Battery-Monitor-FREE
-SHIPPING-/252284067804?hash=item3abd4d5fdc:g:0d0AAOSwFqJWs6km
<http://www.ebay.com/itm/Victron-Energy-BMV700-Precision-Battery-Monitor-FRE
E-SHIPPING-/252284067804?hash=item3abd4d5fdc:g:0d0AAOSwFqJWs6km&vxp=mtr>
&vxp=mtr

http://www.ebay.com/itm/Victron-Energy-BMV700-Precision-Battery-Monitor-FREE
-SHIPPING-/252284067804?hash=item3abd4d5fdc:g:0d0AAOSwFqJWs6km
<http://www.ebay.com/itm/Victron-Energy-BMV700-Precision-Battery-Monitor-FRE
E-SHIPPING-/252284067804?hash=item3abd4d5fdc:g:0d0AAOSwFqJWs6km&vxp=mtr>
&vxp=mtr

I have one of these in my shed - I used it on my old panel and it was/is
quite accurate. 

http://www.ebay.com/itm/Marinetics-Corp-Marine-Analog-8-16-DC-Volts-Battery-
Monitor-Gauge-Panel-Meter-/141887132805?hash=item210921d485:g:b40AAOSwuTxWA~
ev
<http://www.ebay.com/itm/Marinetics-Corp-Marine-Analog-8-16-DC-Volts-Battery
-Monitor-Gauge-Panel-Meter-/141887132805?hash=item210921d485:g:b40AAOSwuTxWA
~ev&vxp=mtr> &vxp=mtr

 

Blue Seas isn't cheap, but it looks nice

http://www.ebay.com/itm/Blue-Sea-Systems-8235-THREE-3-BANK-DIGITAL-VOLTAGE-B
attery-MONITOR-volt-Meter-DC-/172098506515?hash=item2811decf13:g:dPkAAOSwMmB
V02sY
<http://www.ebay.com/itm/Blue-Sea-Systems-8235-THREE-3-BANK-DIGITAL-VOLTAGE-
Battery-MONITOR-volt-Meter-DC-/172098506515?hash=item2811decf13:g:dPkAAOSwMm
BV02sY&vxp=mtr> &vxp=mtr

 

All these are self-powered (two wires, no separate supply) LED or LCD volt
meters. I started with LED, but found them too bright at night, so I
switched to LCD.

http://stores.ebay.com/Elite-element/Doesnt-require-POWER-/_i.html?_fsub=280
3756012
<http://stores.ebay.com/Elite-element/Doesnt-require-POWER-/_i.html?_fsub=28
03756012&_sid=897140872&_trksid=p4634.c0.m322>
&_sid=897140872&_trksid=p4634.c0.m322

 

My amp meter is like this one. I run it from an isolated supply:

http://www.ebay.com/itm/DC-0-200A-Positive-Negative-Current-Minus-AMP-Meter-
Battery-Monitor-Updated-MZ-/180562139657?hash=item2a0a579a09

 

I might buy this to see how it works:

http://www.ebay.com/itm/DC-Programmable-0-90V-0-200A-Voltage-Current-Ah-Powe
r-Meter-Battery-AGM-SLA-LEAD-/180463308411?hash=item2a04738e7b

 

Hope this helps

 

 

Joe Della Barba

j...@dellabarba.com <mailto:j...@dellabarba.com> 

Coquina

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