Interstate golf cart batteries at Costco typically range from $120 to $250 per 6V or 8V unit, depending on capacity (e.g., 225Ah vs. 170Ah). Most golf carts require 4–8 batteries in series, bringing total system costs between $600–$1,500. Prices may vary by regional availability and ongoing promotions—check Costco’s automotive section for Interstate GC2 or GC8 flooded lead-acid models with 12–18 month warranties.
Where to Find a 6-Volt Golf Cart Battery Near You
Wholesale lithium golf cart batteries with 10-year life? Check here.
What voltage do Interstate golf cart batteries use?
Most Interstate golf cart systems employ 6V or 8V flooded lead-acid batteries wired in series. A standard 48V cart uses eight 6V batteries (8×6V=48V) or six 8V units (6×8V=48V). Pro Tip: Higher voltage per cell reduces current draw, extending runtime by 15–20% compared to 12V configurations.
Interstate’s GC2 (6V) and GC8 (8V) models dominate the market, with capacities from 150–250Ah. For example, six GC8 8V/170Ah batteries create a 48V system storing 8.16kWh. Transitional phrase: While voltage configurations are standardized, runtime ultimately depends on…
| Voltage | Capacity | Weight |
|---|---|---|
| 6V | 225Ah | 62 lbs |
| 8V | 170Ah | 58 lbs |
How long do Interstate batteries last in golf carts?
Properly maintained Interstate lead-acid batteries deliver 4–6 years in daily golf cart use. Key factors include avoiding 50% depth-of-discharge, monthly equalization charges, and keeping terminals corrosion-free. Pro Tip: Add distilled water only after full charging—overfilling dilutes electrolyte density.
In practice, a 48V Interstate pack driving 15 miles daily degrades 20% faster if routinely discharged below 40% SOC. Transitional phrase: Beyond maintenance habits, environmental impacts…
Want OEM lithium forklift batteries at wholesale prices? Check here.
Redway Battery Expert Insight
FAQs
No—Costco sells batteries only. Installation requires compatible cables and torque wrenches (8–10 Nm terminal tightness). Improper connections cause voltage drops exceeding 5%.
Can I upgrade to lithium at Costco?
Currently, Costco stocks lead-acid only. Lithium conversions need BMS-equipped packs matching controller voltage thresholds (e.g., 58.4V cutoff for 48V systems).
Why Interstate Golf Cart Batteries Are a Top Choice
