12.8V 20Ah LiFePO4 Deep Cycle Battery
Dependable, long-lasting power for solar, marine, and backup applications.
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Choose your battery capacityDependable, long-lasting power for solar, marine, and backup applications.
This Mach 1 12.8V 20Ah LiFePO4 battery delivers consistent, stable energy for demanding off-grid and backup power needs. Nearly 60% lighter than an equivalent lead acid battery, it combines long cycle life with fast recharging and reliable high-discharge performance.
Key Features
- High-performance LiFePO4 chemistry — consistent energy and stable output under demanding use
- Smart BMS protection — guards against overcharge, deep discharge, overcurrent, and temperature fluctuations
- Scalable — connect in series or parallel for higher voltage or greater capacity
- Lightweight design — just 2.6kg, nearly 60% lighter than an equivalent lead acid battery
- Strong high-discharge performance — outperforms traditional SLA batteries under heavy load
- Fast recharge, low self-discharge — efficient charging with minimal idle power loss
- Long-lasting durability — up to 10x more cycles than standard lead acid batteries
Specifications
| Specification | Details |
|---|---|
| Nominal Voltage | 12.8V |
| Capacity | 20Ah (256Wh) |
| Cycle Life | 3,000-5,000 cycles @ 80% DOD |
| Weight | 2.6kg (5.6 lbs) |
| Dimensions (L×W×H) | 181 × 76 × 166 mm (7.12" × 3.0" × 6.5") |
| SKU | LFP1220S |
| Barcode | 10788362674240 |
What's in the Box
- 1 x Mach 1 12.8V 20Ah LiFePO4 Deep Cycle Battery
FAQ
-
Can I connect multiple batteries together?
Yes, this battery can be wired in series or parallel to scale voltage or capacity for larger systems. -
How does this compare to a lead acid battery?
It's nearly 60% lighter and rated for up to 10x more charge cycles than a comparable SLA battery. -
Does it have built-in protection circuitry?
Yes, it includes a smart BMS that protects against overcharge, deep discharge, overcurrent, and temperature extremes. -
What is this battery best suited for?
Solar power systems, marine applications, and backup power setups.
You May Also Need
Need a smaller capacity? See the 12.8V 5Ah, 12.8V 6Ah, or 12.8V 7.2Ah LiFePO4 batteries, or browse the full range in 12V LiFePO4 Batteries and Deep Cycle Batteries for RV & Solar.
Why Buy from Mach 1 Lithium
Mach 1 Lithium builds LiFePO4 batteries engineered for real-world reliability — longer cycle life, scalable design, and a true drop-in fit for the SLA batteries you're replacing.
| Specification | Details |
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