Off-grid power starts with the bank.
An off-grid battery bank is the heart of any cabin, remote-site, or comms-site power system: LiFePO4 batteries wired together to store power from solar or a generator, ready whenever you need it. We design banks around Canadian-made batteries, size them to your actual loads, and tell you the runtime math before you spend a dollar.
What an off-grid battery bank actually is
A battery bank is a set of batteries wired together to act as one big storage system. Off-grid, there's no utility line to fall back on — the bank holds every watt-hour you harvest from solar or burn through your generator, and hands it back to your cabin, site, or equipment whenever it's needed. We build banks on lithium iron phosphate (LiFePO4) chemistry: stable, deep-cycling, thousands of charge cycles, and no memory effects or watering like the old flooded lead-acid banks.
Banks scale in steps. Start with 12V units and expand to 24V or 48V as your loads grow — a 48V bank is the standard for cabins and remote sites because it keeps wiring thinner and inverters happier. The standard build block in our designs is the Canbat CLI150-12: eight of them in a 4S4P configuration make a 48V / 7.68 kWh bank, and you can add strings from there.
The Canadian-made primary
Our primary pick is the Canbat CLI150-12 — a 12V 150Ah LiFePO4 battery from Canbat Technologies Inc. in Vancouver BC: 1,920 Wh usable per unit, 150A continuous discharge, 10-year warranty, UL 1642 certified cells, free Canada-wide shipping and no duties. Canadian manufacturer, Canadian tech team, Canadian dollars.
Currently listed at $807.50 CAD on sale (reg. $902.50) — verify at purchase; prices move. For unheated cabins and cold comms sites, Canbat makes a heated CLI150-12LT version that charges below 0°C — which matters on the coast in January. Bigger banks can step up to the CLI300-12 (12V 300Ah, same Canadian manufacturing), or a full cabin kit like the ECO-WORTHY Canada 5kW bundle ($1,999.99 CAD, panels plus 5.12 kWh of storage in one package).
Bank sizing basics
Sizing is arithmetic, not guesswork: add up your daily watt-hours, multiply by the days of autonomy you want, and work backward from there. A 48V bank of eight CLI150-12s holds 7.68 kWh. Run a 250 W average load — lights, fridge, Starlink, laptop — and you've got roughly a day of autonomy. Run 2 kW of heat and that same bank is empty in a few hours. That's why we size to a load list, not a feeling.
Run 2 kW of heat and that same bank is empty in a few hours.
And a bank is storage, not generation. Every design pairs the bank with input: solar for the long haul, a generator for top-ups and dark weeks, or both. Storage without input is a very expensive box of maybes.
How we work: resell + licensed install
We're a hardware reseller for battery systems and we contract the build. For off-grid banks this is straightforward: 12V/24V/48V DC bank work — wiring the batteries, the inverter, the charge controllers — is the work our crew does every week. Anything wired into a building's electrical panel goes to a hired licensed electrician in BC, under our prime-contractor model. Jonathan primes the job; the electrician wires the panel work.
Compare the off-grid options
| Product | Capacity | Best for | Canadian angle | Price |
|---|---|---|---|---|
| Canbat CLI150-12 | 12V 150Ah LiFePO4, 1,920 Wh usable; expands to 48V / 7.68 kWh banks | Cabin and comms-site banks; the standard building block of a 48V system | Canadian-made — Canbat Technologies Inc., Vancouver BC. 10-yr warranty, free Canada-wide shipping | $807.50 CAD (sale; reg. $902.50) — verify at purchase |
| Canbat CLI300-12 | 12V 300Ah LiFePO4 — double the capacity per unit | Larger banks with fewer units; comms-site backup | Same Canadian manufacturer, same 10-yr warranty | Verify at purchase — email info@rapiddeploy.ca |
| ECO-WORTHY 5kW bundle | 5.12 kWh LiFePO4 + 5,000 W 48V all-in-one inverter | Entry cabin kit: generation and storage together in one package | Canadian storefront, CAD pricing, sold in Canada | $1,999.99 CAD — verify at purchase |
Pros and cons
- Canbat CLI150-12 — pro: Canadian-made, 10-year warranty, heated LT version for sub-zero cabins, scales cleanly to 48V. Con: building a bank means wiring and configuring, not just unboxing; plan for a day of install work.
- Canbat CLI300-12 — pro: fewer units to wire for the same capacity. Con: bigger units, heavier to handle into a remote site; price is quote-only right now.
- ECO-WORTHY 5kW bundle — pro: panels plus storage in one package for cabins starting from scratch. Con: an entry kit, not a whole-home solution; check inverter sizing against your loads.
What it can't do
A battery bank stores power — it doesn't make it. Runtime depends entirely on load: the bank that runs your lights, Starlink and fridge for days will drain in hours under electric heat. Sizing honesty is the whole job — we calculate your loads, show you the runtime math, and never sell you a bank that can't do what you need it to do.
It also can't fix a property with no generation path. If there's no grid, no solar, and no generator, a bank is just potential, sitting there. And bank capacity ratings are honest-only-if-you-read-them: usable watt-hours, not nameplate marketing.
Pairs with
Off-grid banks are usually one half of a remote power build. See remote site power for the full prime-contractor picture — small tower builds, comms-site infrastructure, and remote estates — and battery systems for our complete hardware lineup, including home backup units. Local pages: off-grid battery banks in Bamfield and Port Renfrew. Seasonal cabins: pair the bank with cabin monitoring so freeze and power-outage alerts reach your phone.
Field note
January is why the heated version exists. Standard LiFePO4 refuses to charge below freezing — a great safety feature right up until your cabin sits at -8°C all February and the bank just sits there. The LT version charges anyway. Spec the battery for the cabin you have, not the cabin in the brochure.
Field note — the empty cabin
Most off-grid cabins sit empty for weeks at a time. That's exactly when you want eyes on the place — a camera that still records, a Starlink link you can check from the city. A bank sized with the security gear and the comms on the load list keeps the cabin watched while you're gone. Your cameras, your call — we keep them powered; we don't install security systems.
Can a battery bank keep my security gear running through an outage?
Yes — we size the bank with your existing security gear and the comms on the load list, so the cameras, gate opener and alarm panel stay powered and reachable through the outage. Straight talk: we keep your gear alive. We don’t install cameras or alarm systems.
Common questions
Canbat or ECO-WORTHY for my cabin?
Canbat if you want Canadian-made batteries with a 10-year warranty and a build block you can expand year after year. The ECO-WORTHY bundle if you're starting from zero and want panels plus storage in one purchase. We'll size both against your load list and quote the real difference.
What about the heated LT version?
The CLI150-12LT has internal heating that lets it charge below 0°C — standard LiFePO4 refuses to charge when frozen, which protects the cells but strands a bank in an unheated cabin. If your cabin sits cold through the winter, the LT version is the honest spec.
Do I need solar too?
Eventually, yes. A bank without input is a paperweight. Generator-only charging works for seasonal cabins, but solar plus a small generator top-up is the standard year-round design. We spec both paths.
Does an off-grid bank need an electrician?
The 12V/24V/48V DC bank build itself is low-voltage contractor work — our crew. Anything tied into a building's AC electrical panel (transfer switches, hardwired inverters) goes to a hired licensed electrician in BC under our prime model. We'll tell you which side of the line your build falls on before we start.
How long does an install take?
A simple cabin bank build is typically a day once equipment is on site. Remote sites add logistics — boat access, winter roads — so we quote the trip as part of the job, not a surprise.
Get sized honestly.
Send us your load list and your cabin reality — we'll spec a bank that actually covers it, with the runtime math shown, and licensed electricians on the panel work where required.