Keeplight K13
The K13, part by part.
Turn it, open it, put it on the wall. It is drawn live in your browser, to its dimensions in millimeters.
Move the pointer to turn it.Drag sideways to turn it.
Charge light
One light tells you what is left.
Amber rises from the bottom as the battery fills. Forty segments, 2.5% of the pack each.
62% · 8.4 kWh42 hours of the sample house
Inside
Sixteen cells and one inverter.
Lithium iron phosphate cells wired as one 51.2 V pack. The inverter under them feeds the house panel.
On the wall
It lives on the garage wall.
29.5 in wide and 5.9 in deep, fed by one conduit from the panel. Rated NEMA 3R, so an outside wall works too.
The numbers
What 13.5 kWh means.
- 13.5 kWh
- stored behind the shell
- 68 hours
- the sample house on one charge, at 4.76 kWh a day
- 21.6 kWh
- back in one clear day on a 6 kW roof
- 282 lb
- on the wall, 45.3 × 29.5 × 5.9 in
Figures are the sample house’s. Yours will differ.
Product sheet
Every figure of the K13.
One model. 13.5 kWh and 7.6 kW in a case 5.9 inches deep, and up to three of them on one house.
Energy and power
- Usable energy
- 13.5 kWh
- Continuous power
- 7.6 kW
- Peak power
- 10 kW for 10 seconds
- Output
- 120/240 V split phase, 60 Hz
- Round trip
- 90%, AC to AC
- Units per home
- Up to 3 (40.5 kWh)
The pack
- Cells
- 16 lithium iron phosphate, 280 Ah each
- Pack voltage
- 51.2 V nominal
- Cooling
- Passive, through the side vents
- Charge light
- 40 segments, 2.5% each
The case
- Height × width × depth
- 45.3 × 29.5 × 5.9 in (1,150 × 750 × 150 mm)
- Weight
- 282 lb (128 kg)
- Shell
- Powder-coated aluminum on an anodized frame
- Rating
- NEMA 3R, indoors or outdoors
- Working temperature
- −4 °F to 122 °F (−20 °C to 50 °C)
- Mounting
- Wall bracket or floor stand
Cover
- Warranty
- 10 years, 70% of capacity
Dimensions
Thinner than the stud wall it hangs on.
It needs 29.5 inches of wall and three feet of clear floor in front of it. At 282 lb, two installers lift it onto the bracket; if the wall cannot carry that, it stands on the floor.
- Garage, utility room or an outside wall: the case is rated NEMA 3R.
- Works from −4 °F to 122 °F.
- No fan. It cools through the side vents and makes no noise.
What arrives
What the installers bring.
- The K13Charged to 30% for the trip, filled on its first day.
- Wall bracketSteel, fixed to two studs. The floor stand is $190 if you choose it.
- Backup switchGoes by your meter. It takes the house off the grid the moment the grid drops, and puts it back when it returns.
- Conduit and wireOne run from the battery to your main panel, cut to your wall.
- The papersThe permit, the inspection record and the 10-year warranty, in your name.
See it on your own wall.
A free site visit: an installer measures the wall, opens your panel and gives you the price in writing.
