SAVINGS CALCULATOR

Your numbers. Your math.

Every assumption below is editable — we're not going to sneak optimistic defaults past you. Plug in what lead-acid actually costs you and see where the money lands.

Defaults are sourced, not invented: $1,200 ≈ street price of a premium 6×8 V flooded set (Trojan T-875 class); 4 years is generous — regular riders commonly replace at 2–3; $60/yr is the low end of the quoted $50–100 for watering and terminal care. Change any of them to yours.

Lead-acid · 3 sets + 10 yrs upkeep$4,200
L-FLEX 5.4 Pro · bought once$2,149
You keep, over 10 years
$2,051
…plus a 5,000-cycle pack that outlasts the horizon, ~99.21 lbs instead of ~250 lbs of lead, and zero watering.

Formula: (sets needed × set cost) + (upkeep × years) vs one L-FLEX. No residual values, no financing assumptions, no fine print. Deliberately not counted, all in lead-acid's favor: lead's ~50% usable depth-of-discharge, 8–12 hr charge times vs 2–3, charging-efficiency losses, replacement labor.

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