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.
Launch price
$29Formats
Google Sheets
Excel
Printable battery snapshot
Best for
Workday rigs that need realistic reserve planning
RVers comparing 12V vs 24V or lithium vs AGM
Anyone planning staged battery upgrades over time
Why this is paid
It is scenario-driven instead of single-run.
It keeps reserve planning tied to real loads.
It makes the battery decision portable beyond one page session.
What you get
Runtime tab by appliance and daily use
Reserve-day planner with chemistry assumptions
Charge-recovery worksheet for solar, alternator, and shore
Expansion planner for adding more battery later
What it helps you do
Battery count and usable-capacity views
Daily usage and reserve comparisons
Charging recovery expectations
A cleaner shortlist for real battery options
Related packs
Spreadsheet pack
This turns the free worksheet into a reusable planning file you can update in the garage, on the road, or during an upgrade round.
Daily watt-hours and amp-hours by device
Largest simultaneous AC loads
Battery reserve target by chemistry and autonomy
Use the contact flow to ask for launch access or bundle help.
Start with the free worksheetPrintable binder
This 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.
A working trip binder for the garage or tow vehicle
Cleaner handoffs between driver, setup, and indoor tasks
Less forgotten friction before departure day
Use the contact flow to ask for launch access or bundle help.
Start with the free checklistInstall planner
This 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.
A realistic roof capacity view
Fewer surprises around shade and cable routing
A cleaner controller and fuse placement decision
Use the contact flow to ask for launch access or bundle help.
Run the free solar calculator