★★★★★5 stars
“Off-grid builds live or die on cell quality and a clean weld. Domes covers both ends of that.”— Example Builder 1, off-grid solar installer
Domes LLC
Off-Grid Power. Built to Last.
Domes LLC
Off-Grid Power. Built to Last.
LTO and LiFePO4 battery cells, plus the CD stud welders you need to weld terminals and build your own packs.
We supply battery builders, solar/storage DIYers, and small shops with cell chemistries and welding equipment engineered for off-grid duty — not disposable consumer gear.
Products are currently out of stock — check back soon.
Built for off-grid builders
LTO and LiFePO4 cells for solar, backup, and mobile power builds.
CD stud welders for clean, cell-safe terminal welds on every pack.
Gear chosen for durability, not disposability.
No filler chemistry, no throwaway welding gear.
Off-grid essentials
LTO + LiFePO4
Battery chemistries
CD Stud
Welding tech
“Built to last through real off-grid duty, not just a showroom floor.”
— Domes LLC
What We Offer
Everything needed to build a battery pack that lasts.
LTO Battery Cells
Lithium titanate cells built for extreme cycle life, fast charge rates, and cold-weather performance in demanding off-grid setups.
LiFePO4 Battery Cells
Lithium iron phosphate cells for stable, long-lasting energy storage — the workhorse chemistry for solar and off-grid banks.
CD Stud Welders
Capacitive discharge stud welders for clean, low-heat terminal welds — built for assembling battery packs without damaging cells.
Pack-Building Hardware
Nickel strip, terminal studs, and connection hardware sized for real pack builds.
Rugged by Default
Every product is chosen for durability first — this is gear for people who depend on it.
Built for DIYers
Straightforward specs and no-nonsense listings for builders who know what they need.
Small Shop Friendly
Quantities and pricing that work for hobbyists and small integration shops alike.
Direct Support
Questions about chemistry, welding, or pack design go straight to a real person.
How It Works
Pick your cells, weld your pack, go off-grid.
From choosing a chemistry to welding the final terminal, here's what it takes to build a battery pack that holds up.
01
Pick your chemistry
Choose LTO for cycle life and cold-weather duty, or LiFePO4 for steady, high-capacity storage.
02
Size the pack
Work out cell count and configuration for your voltage and capacity target.
03
Weld the terminals
Use a CD stud welder to bond terminals without overheating or damaging the cells.
04
Go off-grid
Put the finished pack to work in solar storage, backup power, or mobile setups.
Product Lineup
Cells and welding gear for building off-grid battery packs.
Every listing is picked for durability and real off-grid performance — not disposable consumer batteries. Full specs and stock go live as products launch.
Out of Stock⚡
LTO Batteries
Lithium titanate cells for extreme cycle life and cold-weather reliability.
Out of Stock🔋
LiFePO4 Batteries
Lithium iron phosphate cells for stable, high-capacity energy storage.
Out of Stock🔧
Stud Welders
CD stud welders for clean, cell-safe terminal welds on every build.
One supplier for cells and the tools to build with them
Battery chemistries and welding hardware chosen to work together for real off-grid builds.
LTO CellsLiFePO4 CellsCD Stud WeldersPack Hardware
From Off-Grid Builders
Trusted by people who depend on their power system.
★★★★★5 stars
“Having LTO and LiFePO4 from the same supplier, plus the welder to assemble packs, simplifies sourcing a lot.”— Example Builder 2, battery pack builder
★★★★★5 stars
“This is gear picked for people who actually depend on their power system, not just browsing a marketplace.”— Example Builder 3, van-life DIYer
Built to Last
LTO + LiFePO4
Battery chemistries
CD Stud
Welding tech
Off-Grid
Built for
“Durable cell chemistry and cell-safe welding equipment, chosen for real off-grid duty.”
Frequently Asked Questions
Batteries, welders, and off-grid builds.
What's the difference between LTO and LiFePO4?
LTO (lithium titanate) offers exceptional cycle life, fast charging, and strong cold-weather performance. LiFePO4 (lithium iron phosphate) offers high capacity and stable, long-term storage at a lower cost per watt-hour. Both are safe, off-grid-friendly chemistries.
Why do I need a CD stud welder?
Capacitive discharge (CD) stud welding bonds terminals to cells with a very short, high-current pulse, minimizing heat transfer into the cell. It's the standard method for building battery packs without degrading cell health.
Are products in stock right now?
Not yet. Domes LLC is currently building out its product catalog. Check back soon or reach out directly for updates on availability.
Who is Domes LLC for?
Off-grid power enthusiasts, battery pack builders, solar/storage DIYers, and small shops that need reliable cells and welding equipment.
Do you offer bulk or shop pricing?
Reach out directly — quantities and pricing for small shops and larger builds are handled on a case-by-case basis.
How do I get in touch?
Email us directly and we'll get back to you as soon as we can.
Still have questions?
Reach out directly about chemistry, welding equipment, or when products come back in stock.
Product Lines
Cells and welding gear for building off-grid battery packs.
LTO Battery Cells
Lithium titanate cells for cycle life and cold-weather duty
Coming Soonout of stock
Extreme cycle life
Fast charge rate
Strong cold-weather performance
Off-grid and mobile ready
LiFePO4 Battery Cells
The workhorse chemistry for solar and off-grid storage
Coming Soonout of stock
High usable capacity
Stable, long-term storage
Lower cost per watt-hour
Proven off-grid track record
CD Stud Welders
Capacitive discharge welders for clean terminal welds
Coming Soonout of stock
Low-heat, cell-safe welding
Built for repeat pack builds
Pairs with nickel strip and studs
Suited for shops and serious DIYers
Notify us if you want early access when stock arrives.
Notify Me — CD Stud Welders⚡
LTO Cells
Cycle life + cold weather
🔋
LiFePO4 Cells
Stable, high-capacity storage
🔧
CD Welders
Clean, cell-safe welds
★
Built to Last
Rugged by default
Full specs, pricing, and stock availability go live as products launch.
Ready When You Are
Built to last, ready for off-grid duty.
Products are currently out of stock while we finish building out the catalog. Reach out directly for updates on availability.
✓ LTO + LiFePO4 cells✓ CD stud welders
Questions? Email kevin@defdogproductions.com