The overlap with the 230v Mains: external is that they both take power from the inverter via a fuse box. There the fuse box feeds two internal circuits. The extension connection goes to the previously used three gang flying extension, now pretty much fixed to the wall and a 6A fuse that feeds a line to a) a junction box from where a cable goes through the wall to a 2 gang socket,
b) feed to another junction box to a 2 gang socket installed above the tool bench, and also
c) feeds a third 2 gang socket in the corner of the computer desk.
Have laid 13A cable to an external rubber housed 13A socket. This has a 13A plug in the toolroom which plugs into a 3 gang socket block which inturn plugs into the inverter.
October 20th Electrolyte levels are fine.
- I have labeled the two S6 145s A and B
and the cells in each are respectively (neg to pos), (pos to neg) ~ 1,2,3
Specific Gravity Readings
May 12th just before sunset.
A1 = 1.280 :: A2 = 1.275 :: A3 = 1.250 | B1 =1.280 :: B2 = 1.275 :: B3 = 1.260
This was before charging and I broke the hydrometer when cleaning so couldn't check the SG during or after charging which aslo included an automatic equalisation.
May 28th Mid afternoon when on float
A1 = 1.290 :: A2 = 1.292 :: A3 = 1.292 | B1 =1.292 :: B2 = 1.292 :: B3 = 1.260
The new Durite 472 has a thermometer for temp coefficients and although it was difficult to read it appears as though at least 6 points should be added, i.e. 1.290 becomes 1.296.
I spoke to Scotty at Durite who said SG's should be within 1%, i.e. 1.290 &plusmin; .0129 (0.013) so a range of 1.277 to 1.303 or 0.26 max diff.
The batteries arrived today with the MPPT and have been installed. It was late in the day before I had finshed and initially the controller went to bulk then abs.
The first thing I did was to make a stainless steel backplate to fasten the controller to and use copper and plastic tubing to keep it off the wall, only a centimetere or so.
I have also connected the 1200w inverter, but there is no other loading.
May 7th Battery voltage of the 2 x S6 145's in series was 12.76. The electrolyte was high in one cell so I distributed it amongst all six.
Cable from MPPT to batteries is approx AWG 8 or 8.4㎜² (50 amps)
Could do with
May 9th Electrolyte levels are fine
May 13th Must use VE Direct USB to set up MPPT and equalise. ✓
June 17thHave fitted a fuse box to inverter output and wiring from there to a) 6A fuse to wiring for sockets to a double socket about the workbench, a double socket by the computer platform and wire to a further socket by the steps. b) 16A fuse for cable to external socket and c) Unfused to a 3 gang row above the electric work bench.
So for power to any 1) switch on inverter, 2) switch on fuse box.
I will not be making a spreadsheet of input and output for a while.
A major factor in choice is weight. I only want around 30Kg to lift. The previous HT 31 was 27.5Kg.
The new S12 27, which is one size down from the S12 31 (Prev HT 31) weighs 24.5 kg and the S6 145 is 32Kg
Details for S6 145
Rolls S6 145 – 6V Series 4000 Battery < £193.49 : 3 Years Warranty
Weight: 32 kg ~ 70.5lbs | Length: 25.9 cm ~ 10.19″ | Width: 18.1 cm ~ 7.13″ | Height Inc. Term: 29 cm ~ 11.4″
Volts: 6 | BCI: GC2H | Cells: 3 | Plates/Cell: 17
Terminal Type DT
Included Hardware S/S Hex Cap Screw, Nut, Lock & Flat Washer
Size & Thread 5/16″-18 x 1-1/2″
Cold Crank Amps (CCA) 0°F / -17°C 710 Marine Crank Amps (MCA) 32°F / 0°C 888 Reserve Capacity (RC @ 25A) 484 Minutes Reserve Capacity (RC @ 75A) 127 Minutes
Charge Voltage Range 2.45-2.5 V/cell @ 25°C (77°F)
Float Voltage 2.25 V/cell @ 25°C (77°F)
Recommended Charge Current Capacity (String) 30 A
Maximum Charge Current (String) 50 A
Self-Discharge Rate 5%-10% per month at 25°C (77°F)
Hour Rate Capacity : AMP Hour : Current / AMPs
@ 100 Hour Rate 320 AH 3.2 A | @ 72 Hour Rate 315 AH 4.38 A | @ 50 Hour Rate 298 AH 5.95 A
@ 20 Hour Rate 250 AH 12.5 A | @ 15 Hour Rate 238 AH 15.83 A |@ 10 Hour Rate 220 AH 22 A
@ 8 Hour Rate 215 AH 26.88 A | @ 5 Hour Rate 198 AH 39.5 A | @ 1 Hour Rate 100 AH 100 A
Amphere hour capacity ratings based on specific gravity of 1.280.
Reduce capacities 5% for specific gravity of 1.265 and 10% for 1.250.