Eugene's Battery & Solar Experts Since 1943
Locally owned and operated, Mac's Batteries provides battery services, off-grid solar equipment, and free automotive battery testing. We keep your life charged!
What We Carry
Over 40 lead-acid group sizes in stock, lithium for every need, and solar equipment to keep your life charged.
Automotive Batteries
Cars, trucks, motorcycles, golf carts, and heavy equipment. Top-tier maintenance-free batteries in 40+ group sizes.
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RV & Marine
Deep-cycle lead and lithium batteries for RVs, trailers, boats, and off-grid boondocking. Drop-in lithium conversions available.
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Lithium Batteries
LiFePO4 and Li-ion from 12V to 48V. Custom builds from portable packs to whole-home Powerwalls. New and used options.
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Solar Panels
New and used solar panels, charge controllers, inverters, and complete off-grid systems. Solar classes available — beginner to advanced.
See panelsSolar System Components
Core gear, installation hardware, and safety/protection parts for complete off-grid and mobile power systems.
Core Systems
Installation Hardware
Free Battery & Alternator Testing
Walk in during business hours. We'll test your battery and alternator at no charge — and if your battery needs replacing, we can install a new one for you right on the spot.
Custom Off-Grid Systems
Tailored off-grid setups of any size. Inverters, charge controllers, micro-hydro, wind, and custom cables — we build it all.
Battery Recycling
Over 95% of lead batteries are fully recyclable. Bring us your old batteries — we'll make sure they're recycled the right way.
Wondering About Lithium?
Lithium batteries last 3–5× longer than lead, weigh 1/3 as much, and offer far more usable capacity. Our 12V 100Ah and 170Ah LiFePO4 drop-in replacements for Group 24/27 come with Bluetooth BMS for easy monitoring.
- ✓ Built to last 10+ years
- ✓ Bluetooth BMS (iPhone & Android) for monitoring
- ✓ Much lighter — same charging system as lead (LiFePO4)
- ✓ Charges significantly faster than lead
- ✓ New, used/tested, off-the-shelf, and custom builds
Quick Comparison
| AGM Lead | Lithium | |
|---|---|---|
| Lifespan | 3–5 years | 12–15 years |
| Weight | Heavy | 1/3 the weight |
| Usable Capacity | ~50% | ~95% |
| Upfront Cost | Lower | Higher |
Come Talk Through Your Project
Bring your vehicle, power goals, or parts list and we will help you build the right setup.
Solar Panels & Classes
We stock new and used solar panels — all used panels are fully MPPT tested. Mac's also hosts solar classes from beginner to advanced. Come learn the basics of off-grid solar to power your life. Call and get signed up today!