Not all “drop‑in” lithium is equal. Prioritize a LiFePO4 with transparent specs for usable capacity (Ah and Wh), published cycle life at realistic DoD, and protections for over/under‑voltage, over‑current, and short‑circuit events. Look for certifications like UN38.3 transport testing, attention to ABYC guidelines, and clear manuals for series/parallel configuration. Honest current ra... https://www.18650batterystore.com/pages/what-is-the-best-12v-lifepo4-battery-2025-guide