For the workshop. 3 x REC 250w input in series to 250Ah 12v Rolls S6 145
Low temperature cut-off
This setting is available when a VE.Smart network is set-up and the battery temperature is available (e.g. by for example using a Smart Battery Sense or a Smart BMV with the optional temperature sensor). It can be used to disable charging at low temperatures as required by Lithium batteries.
For Lithium Iron Phosphate batteries this setting is preset at 5 degrees Celsius, for the other battery types it is disabled. When creating a user defined battery the cut-off temperature level can be adjusted manually.
See the VE.Smart Network manual for details on what devices are capable of transmitting temperature.
Manual Equalization - Start now
Selecting 'Start now' on 'Manual equalisation' allows manual initiation of an Equalization cycle. To allow the charger to equalize the battery properly use the manual equalize option only during absorption and float periods, and when there is sufficient sunlight. Current and voltage limits are identical to the automatic equalize function. The duration of the equalisation cycle is limited to a maximum of 1 hour when triggered manually. Manual equalization can be stopped at any time by selecting 'Stop Equalize'.
Just before installation around sunset May 12th the values are
1: 1.260 | 2: 1.265 | 3: 1.250 | 4: 1.250 | 5: 1.245 | 6: 1.250
I have bought Rolls again, 1 off Rolls S12 27 (105Ah @ 20Hr) this time direct from Barden UK.
A major factor in choice is weight. I only want to lift around 30Kg. The previous HT 31 was 27.5Kg. The new S12 27 weighs 24.5 Kg, one size down from the HT/S12 31.
Details for S12 27
Rolls S12 27 – 12V Series 4000 Battery < £154: 3 Years Warranty
Weight: 24.5 kg ~ 54lbs | Length 32.1 cm 12.63" | Width 17.1 cm 6.75" | Height Inc. Term. 23.8 cm 9.38"
Volts: 6 | BCI: Grp 27 | Cells: 6| Plates/Cell: ?
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 660 Marine Crank Amps (MCA) 32°F / 0°C 825 Reserve Capacity (RC @ 25A) 185 Minutes Reserve Capacity (RC @ 75A) 53 Minutes
Charge Voltage Range
Bulk : Absorption = 2.45-2.5 V/cell @ 25°C (77°F) or 14.7v to 15v
Float Voltage = 2.25 V/cell @ 25°C (77°F) or 13.5v
Equalisation = 15.48 to 16.02 SG 1.280
Recommended Charge Current Capacity (String) 15A
Maximum Charge Current (String) 25 A
Self-Discharge Rate 5%-10% per month at 25°C (77°F)
Hour Rate Capacity : AMP Hour : Current / AMPs
@ 100 Hour Rate 140 AH 1.4 A |@ 20 Hour Rate 105 AH 5.25 A | @ 15 Hour Rate 99 AH 6.58 A
@ 10 Hour Rate 89 AH 8.93 A | @ 8 Hour Rate 87 AH 10.89 A | @ 5 Hour Rate 85AH 17.01 A | @ 1 Hour Rate 38 AH 37.8 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.
7th April. Just attached the cables to the roof of the workshop by first fixing an upright to one of the purlins and then a batten from that to one of the rails. The attachement to the rails is just ~ wedged under. The wood is Siberian Larch left over from the rafters and battens respectively.
The batten had a copper strip running on it's upper edge and the cables are held to the upper face by fabricated copper clamps. The clamps are made from flattened 10mm copper pipe comming out as some 50mm long and 15mm wide and 2mm thich. They are bent to shape and fastened wiyth two stainless screws. The copper strip is fastened with bronze ringed nails.
9th April. Fitted copper earthing strip to wall of workshop. Still have to connect a) the frames of the pannels together b) the panels frames to the earth conductor c) joint parts of the copper earth conductor and d) insert copper rod to earth and connect that to the joined up a,b and c.
The cables are fastened with homemade clamps
The copper strip has been hammered into the chamfers which hopefully will allow for any expansion of timbers.
10th April. Used s-old-id fuse box for 110v input from solar array. .
See https://unveiled.info/solect/installation for next stage
This is some 10 to 16 years old. Model 651.626.
Brought it out as moved the Victron 1200 to the workshop and want soemthing to recharge the Fridge, Bag of Riddim II, Old Nokia 6303, and more.
It seems fine though a bit noisey with the fan running even on low loads. It's desugned for 10 to 16 volts
I have just bought an inverter form Wind and Sun UK, I called them for two reasons
1) to find out what current the inverter takes when it is switched off and
2) to say the manual was disappointing
1) how does switching work as it isn't a power switch that physically breaks and joins the 200A input cables,
i) What is the rating of the dc input cables?
ii) How are the input DC cables connected, I imagine there must be some loss?
iii) Does the power switch, in the off position, just a break in power to a relay, that when on enables the dc circuit to work and connects the DC input.
2) The manual says very little, maybe there is little to say, but it could state
i) the load in the off, as above,
ii) the image in the index is very poor and hardly usable and the one on your website, which isn't mentioned in the manual isn't much better. Could you send me a detailed image or is their one on the website. All I could find is a version of the manual; which I made a screen shot of and enlarged.
A third matter
i) The UK 230v socket is upside down and the mains cable blocks easy access to the power switch.
ii)Your image show it the correct way.
Can I unscrew the body and correct this?
iii) plus the socket isn't screwed in place and moves around a bit
4. Finally I am disappointed it is made in China, prior to purchase I though it would be India like the MPPT 75|15
Cc Wind and Sun