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    Q: How do I know if water level is too low or just right?
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    <p class="mt-2"><strong>Too Low:</strong> Lead plates visible or partially exposed when you shine flashlight—needs immediate top-up. <strong>Just Right:</strong> Water covers plates completely with 5-10mm gap above plates, or filled to indicator line between MIN-MAX marks. <strong>Too High:</strong> Water at very top of cell opening, no gap—will overflow during charging. Use flashlight to see clearly. If battery has float indicator (some models), red = low, green = OK. Check when battery is fully charged for accurate reading—water expands when hot.</p>
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    Q: Can I use boiled water or RO water instead of distilled water?
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    <p class="mt-2"><strong>Absolutely NO.</strong> This is the #1 battery killer. <strong>Boiled water:</strong> Boiling kills bacteria but doesn't remove minerals—still has calcium, magnesium which deposit on plates. <strong>RO water:</strong> Has 10-50 TDS (total dissolved solids)—better than tap but still contains minerals. Over 2-3 years, these minerals accumulate on plates, block active area, reduce capacity by 40-60%. Battery rated for 5 years fails in 2-3 years. <strong>Only distilled water (0 TDS)</strong> is safe—costs ₹20-50/liter, available at any medical store. ₹150/year investment protects your ₹15,000 battery. False economy to use tap/RO water.</p>
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    Q: What is equalization charging and how often should I do it?
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    <p class="mt-2">Equalization charging is continuous charging for 12-16 hours to break down mild sulfate crystals and equalize acid concentration in all cells. <strong>How it works:</strong> Extended charging at 13.8-14.4V creates vigorous bubbling that breaks soft sulfate deposits and mixes electrolyte thoroughly. <strong>When to do:</strong> (1) Preventive maintenance: Once every 3-4 months, (2) When backup time gradually reduces over months, (3) After adding water to battery, (4) Battery showing signs of mild sulphation. <strong>How to do:</strong> Disconnect all loads, ensure good ventilation, let battery charge continuously for 12-16 hours. <strong>Caution:</strong> Battery will bubble heavily and produce hydrogen gas—ensure excellent ventilation, no smoking/flames nearby.</p>
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    Q: My battery bubbles heavily during charging. Is this normal?
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    <p class="mt-2"><strong>Normal bubbling:</strong> Gentle bubbling during final charging stage (last 1-2 hours) is normal—electrolysis of water producing hydrogen and oxygen. This is how batteries charge. <strong>Excessive bubbling:</strong> Heavy bubbling from the moment charging starts, continuous vigorous bubbling, or bubbling with battery getting very hot indicates overcharging. Check charging voltage with multimeter—should be 13.8-14.4V (single battery) or 27.6-28.8V (two batteries). If higher (15V+), inverter needs servicing to adjust charging voltage. Overcharging causes rapid water loss, plate damage, reduced battery life. <strong>After adding water:</strong> More bubbling is normal for first charging cycle as electrolyte mixes.</p>
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    Q: How much does battery desulphator device actually help?
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    <p class="mt-2"><strong>Realistic expectations:</strong> Desulphators work on mild to moderate sulphation only—not miracle devices. <strong>Success rate:</strong> 40-50% users report 10-30% capacity improvement. 30-40% see minimal improvement. 10-20% see no change. <strong>Best candidates:</strong> Batteries 2-4 years old with gradual capacity loss, no physical damage. <strong>Won't help:</strong> 5+ year old batteries, heavily sulphated batteries (thick white deposits), physically damaged batteries. <strong>How they work:</strong> Send high-frequency pulses (kHz range) that supposedly break sulfate crystal bonds. <strong>Cost:</strong> ₹1,000-3,000. <strong>Verdict:</strong> Worth trying if battery is 2-4 years old and other methods failed. Don't expect miracles. Better used preventively on new battery than as cure for old battery. Free equalization charging should be tried first.</p>
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    Q: Can I add more acid instead of water to increase backup time?
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    <p class="mt-2"><strong>NEVER add acid to battery—extremely dangerous and damages battery.</strong> During charging, only water evaporates (hydrogen and oxygen separate)—acid doesn't evaporate. Water loss increases acid concentration automatically. Adding more acid creates dangerously high concentration that: (1) Corrodes plates rapidly, (2) Generates excessive heat, (3) Reduces battery life by 70-80%, (4) Can cause battery explosion. <strong>Only add distilled water—NEVER acid.</strong> Battery comes with correct acid concentration from factory (specific gravity 1.25-1.28). This concentration should remain constant for battery life—you only replace evaporated water. If acid level is low due to spillage/leak, battery needs professional service or replacement—don't attempt DIY acid top-up.</p>
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    Q: One cell of my battery has very low water compared to others. Why?
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    <p class="mt-2">Unequal water loss between cells indicates cell-level problem: <strong>Common causes:</strong> (1) <strong>Cell imbalance:</strong> That cell is working harder (taking more charging current), loses water faster—can happen in older batteries, (2) <strong>Internal short circuit:</strong> Shorted cell generates excessive heat, evaporates water rapidly, (3) <strong>Manufacturing defect:</strong> Weak cell from beginning, (4) <strong>Cracked separator:</strong> Allows direct plate contact, causes local overheating. <strong>What to do:</strong> Top up all cells to correct level with distilled water, charge fully, monitor for 1-2 months. If same cell consistently loses water much faster than others, that cell is faulty—battery capacity is reduced permanently. Severely imbalanced cells (one dry, others full) indicate battery nearing end of life—consider replacement.</p>
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    Q: Best batteries for Indian climate with frequent power cuts?
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    <p class="mt-2"><strong>Tubular batteries are best for Indian conditions.</strong> <strong>Why:</strong> (1) Handle frequent charge-discharge cycles better (daily power cuts), (2) Last 4-5 years vs 2-3 years for flat plate, (3) Better heat tolerance for Indian summers, (4) Higher depth of discharge capability. <strong>Recommended capacity:</strong> 150Ah for 2-3 bedroom home (fans, lights, TV), 200-220Ah for larger home or longer power cuts. <strong>Top brands (2025):</strong> <strong>Exide:</strong> Industry leader, excellent service network, ₹12,000-15,000 (150Ah). <strong>Amaron:</strong> Long life, good warranty, ₹13,000-16,000. <strong>Luminous:</strong> Best value for money, ₹11,000-14,000. <strong>Su-Kam/Microtek:</strong> Budget options, ₹10,000-13,000. <strong>Avoid:</strong> Unknown Chinese brands, flat plate batteries for frequent power cut areas, undersized batteries (100Ah for heavy load).</p>
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