The NAPA Power Battery 6565 (likely referencing Narada’s 6-GFM-65 model) is a 12V 65Ah lead-acid battery designed for backup power systems. Optimized for UPS, solar/wind energy storage, and fire safety applications, it features a valve-regulated design (VRLA) with spill-proof construction and deep-cycle capabilities. Typical use cases include telecom towers, industrial control systems, and emergency lighting. Maintenance intervals span 3–6 months, with a 3-year warranty common in commercial deployments.
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What are the technical specifications of the 6-GFM-65 battery?
This VRLA lead-acid battery operates at 12V with 65Ah capacity (20hr rate). Key specs include ≤25mV cell voltage deviation, -15°C~45°C operating range, and 3-year float service life under 25°C conditions.
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Designed for stationary applications, its absorbed glass mat (AGM) technology prevents electrolyte stratification—critical for solar installations experiencing irregular charging. A typical 6-GFM-65 unit weighs ~21kg, with terminals accepting M8 bolts for secure connections. Pro Tip: Always store these batteries upright; tilted positions beyond 45° may compromise valve functionality. For example, a telecom base station might use eight units in series for 96V backup power. But what happens if you mix old and new batteries? Accelerated aging occurs as weaker cells force others into overcharge states.
How does the 6-GFM-65 compare to lithium alternatives?
While lithium batteries offer 2–3x cycle life, the 6-GFM-65 maintains cost advantages in low-cycling backup scenarios. Lead-acid technology remains preferred where upfront costs dominate decision-making.
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| Parameter | 6-GFM-65 | LiFePO4 Equivalent |
|---|---|---|
| Cycle Life | 300–500 | 3,000–5,000 |
| Cost/Ah | $6–8 | $15–20 |
| Weight | 21kg | 9kg |
Practically speaking, a data center using daily 20% discharges would replace lead-acid units every 2–3 years versus 10+ years for lithium. However, infrequently used emergency systems benefit from VRLA’s lower capital expenditure. Why pay premium prices for chemistry that won’t be cycled daily?
What charging parameters optimize 6-GFM-65 lifespan?
Constant voltage charging at 14.4–14.7V (25°C) with current limiting to 0.25C (16A max) ensures safe replenishment. Temperature compensation of -3mV/°C/cell prevents overvoltage in hot environments.
Bulk charging should transition to float at 13.5–13.8V when current drops to 1–2% of capacity. For solar integrations, controllers must disable equalization modes—AGM batteries degrade if held above 14.7V for extended periods. A real-world example: Off-grid cabins often pair these with 20A MPPT controllers, achieving full recharge in 5–6 sunlight hours. Pro Tip: Install battery monitors—sudden voltage drops below 11.8V during discharge indicate imminent capacity collapse.
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FAQs
Yes—up to four strings in parallel recommended. Series connections for higher voltages require matched batteries (±0.05V OCV difference) to prevent imbalance.
What’s the shelf life when fully charged?
6–9 months at 25°C with self-discharge under 3% monthly. Store below 30°C and recharge every 6 months if unused.
