Battery workbook
A runtime and reserve workbook for daily loads, usable capacity, recharge windows, bank voltage, and expansion paths before you commit to the battery layout.
Use the paired calculator or guide first if you only need a quick decision.
Run the free battery calculatorDownload a small sample so you can see how the planning file is organized.
Download the sampleMove forward only when the plan needs to be saved, shared, printed, or reused.
Review access stepsField problem
Battery decisions blur rated amp-hours, usable capacity, reserve days, recharge windows, placement limits, and staged upgrade plans.
Field-ready use case
Use it while comparing battery counts, chemistries, locations, and recovery paths before buying or expanding the bank.
Preview
These sample cards show the same kind of sections used in the complete file. The sample download gives you the planning shape without publishing the full product.
Compare the days you actually live, not one average day.
Normal day, remote-work day, cold night, hot day
Autonomy days and usable capacity needed
Biggest load and load to measure next
Preview 1
This is where a weekend rig and a full-time work rig stop looking the same.
Shop by usable capacity instead of headline amp-hours.
Battery count, rated Ah, system voltage
Usable percent, usable Wh, weight, approximate cost
Cost per usable kWh and keep/reject decision
Preview 2
Keeps chemistry, reserve, weight, and budget in the same decision.
Catch temperature and service issues before buying batteries.
Battery bay, pass-through, interior, custom enclosure
Low-temp charging protection and ventilation
Service access, weight, payload, and keep/reject
Preview 3
Battery planning is not only capacity. Location and charging limits matter.
Inside the file
The file is built around checklists, outputs, and practical use. It is not article copy moved into a PDF.
Deliverable 1
Runtime tab by appliance and daily use
Deliverable 2
Reserve-day planner with chemistry assumptions
Deliverable 3
Charge-recovery worksheet for solar, alternator, and shore
Deliverable 4
Expansion planner for adding more battery later
Good fit
This should feel obviously useful before you pay or request access.
Workday rigs that need realistic reserve planning
RVers comparing 12V vs 24V or lithium vs AGM
Anyone planning staged battery upgrades over time
Skip it if
A useful product page should also save the wrong buyer from paying.
You only need a quick battery estimate and will not compare scenarios.
You are not ready to list daily loads, recharge windows, or reserve targets.
You want brand-specific battery recommendations instead of planning math.
Free vs paid
This gives battery planning the same reusable structure that the calculator gives you in one session, but with room for multiple scenarios and staged upgrades.
First answer
Free tool or guide
The free tool or guide helps you understand the tradeoff before spending money.
Reusable planning file
The reusable planning file keeps the answer useful after the browser tab closes.
Repeat use
Free tool or guide
Best for a one-time estimate or a quick planning pass.
Reusable planning file
Best when the same planning job needs to be saved, printed, shared, or revisited.
Handoff
Free tool or guide
Good for learning the logic yourself.
Reusable planning file
Better when a partner, installer, or future-you needs the assumptions in one place.
Free first
Best when you need the first answer and do not need to maintain a reusable planning file.
Open free resourceReusable planning file
Best when the answer needs to be reused, marked up, printed, or handed to a partner or installer.
FAQ
The short version: this is a reusable planning file, not custom installation labor.
Use the access button. The form opens with this planning file already chosen, then we reply by email with the payment link, delivery timing, and download details before anything is billed. Delivered as editable spreadsheet files plus a printable battery snapshot sheet.
The listed formats are Google Sheets, Excel, Printable battery snapshot. The planning file is meant to be reusable, so keep a clean copy and duplicate it for each trip, install, or upgrade round.
Not always. Use the free battery calculator if you only need the first answer. This planning file makes more sense when you need a reusable planning file you can mark up, revisit, or hand to someone else.
The file is built as a planning template, not a custom design service. You can adapt it to your rig, but measurements, component specs, and final install decisions still need to be verified against your exact equipment.
Delivery note
Delivered as editable spreadsheet files plus a printable battery snapshot sheet.
Access helper
Beta access is open. Send the request and we'll reply with the payment link, delivery timing, and best bundle option if it applies.
Pairs well with
These are connected to the same kind of work, so they are useful next steps instead of random related links.
See which loads actually move the system.
Compare recovery before adding more battery.
Spreadsheet file
$29 · Beta accessThis turns the free worksheet into a reusable planning file you can update in the garage, on the road, or during an upgrade round.
Field problem
Daily-load math, inverter spikes, and charger assumptions are scattered across notes, calculator tabs, and old screenshots.
Field-ready use case
Use it during a garage power audit, upgrade quote review, or pre-trip reset when the same load assumptions need to be reused.
First payoff
Load-by-load audit tab with watt-hours and amp-hours already laid out
Daily watt-hours and amp-hours by device
Largest simultaneous AC loads
Battery reserve target by chemistry and autonomy
Who it's for
Inside at a glance
Load-by-load audit tab with watt-hours and amp-hours already laid out
Seasonal margin tab for cloudy stretches, workdays, and winter use
Delivered as editable spreadsheet files plus a printable one-page summary. Beta access is open. Send the request and we'll reply with the payment link, delivery timing, and best bundle option if it applies.
Make the 72-hour window less chaotic.
Know the limiter before it cuts the stay short.
Printable binder
$39 · Beta accessThis is the polished, reusable version of the checklist mindset: print it, mark it up, and keep it with the rig instead of hunting through scattered notes.
Field problem
Departure, setup, tank, refill, and seasonal tasks live in too many places, so important checks get rediscovered after something goes sideways.
Field-ready use case
Use it as the rig binder before departure, on camp-arrival day, and during reset days when multiple people share the prep work.
First payoff
Departure, setup, reset-day, and shutdown checklists grouped by system
A working trip binder for the garage or tow vehicle
Cleaner handoffs between driver, setup, and indoor tasks
Less forgotten friction before departure day
Who it's for
Inside at a glance
Departure, setup, reset-day, and shutdown checklists grouped by system
Tank, propane, and refill planning sheets that can be reused trip after trip
Delivered as printable PDFs plus a tablet-friendly planning copy. Beta access is open. Send the request and we'll reply with the payment link, delivery timing, and best bundle option if it applies.
Let the roof vote before the cart gets expensive.
Track the parts that steal panel space.
Install planner
$35 · Beta accessThis is for the point where the calculator says what size system you need, but the roof still has to prove it can physically carry the plan.
Field problem
The calculator can size the system, but it cannot see vents, AC shrouds, shade lines, service paths, cable entry, or drill-day sequencing.
Field-ready use case
Use it on the roof, in the garage, or with an installer before buying panels, mounts, wire, sealant, and controller hardware.
First payoff
Roof obstacle grid for AC units, vents, skylights, and cable routes
A realistic roof capacity view
Fewer surprises around shade and cable routing
A cleaner controller and fuse placement decision
Who it's for
Inside at a glance
Roof obstacle grid for AC units, vents, skylights, and cable routes
Panel grouping and controller-location planning sheet
Delivered as printable planning sheets meant for measuring, sketching, and marking up. Beta access is open. Send the request and we'll reply with the payment link, delivery timing, and best bundle option if it applies.
Battery-Bank Planning Worksheet
$29