12 Volt Automatic Battery Charger — 10A Variable

Boost applies a higher voltage for actively charging a discharged battery; Float applies a lower maintenance voltage that keeps an already-charged battery topped up without overcharging. You select the mode yourself with the front-panel switch — which is exactly what makes this charger ideal for inverter and DG-set batteries left connected for long periods.

A widely used starting guideline for lead-acid batteries is about 10% of the rated Ah capacity: roughly 10A for a 100Ah battery, 5A for 50Ah and 1A for a 10Ah motorcycle battery. Always follow the charging current your battery manufacturer specifies, and start at 1–2A on a deeply discharged battery before raising it.

Often, yes — if the battery is still serviceable. Some automatic chargers read a deeply discharged cell as a bad battery and refuse to begin. Because you set the current manually here, you can start at 1–2A and increase as terminal voltage recovers. A battery with a shorted cell, severe sulphation or physical damage may not accept charge at all, and no charger can repair that.

Yes. This charger works with every brand of 12V lead-acid battery — Exide, Amaron, Luminous, Okaya, SF Sonic, Tata Green, Base and others — whether flat plate, tubular, SMF, VRLA or AGM, from about 7Ah to 220Ah with the current set to the manufacturer’s specification. GEL batteries often need a lower charging voltage, so check that figure with us first. It is not compatible with lithium-ion or LiFePO₄ batteries.

The Samco SB-12-10DG costs ₹3,234 all-inclusive — GST invoice, free shipping to 19,000+ pincodes, and COD or UPI payment. Because you buy factory-direct from the Delhi manufacturer, there’s no importer or reseller margin built in, and dealer pricing starts at just five units.

Anywhere in India — free, to 19,000+ pincodes in 3–7 working days. Orders dispatch from 21 Gokhale Market, near Kashmere Gate Metro Station, Delhi 110054, usually within 24 hours. Order by calling or messaging WhatsApp on 99539 35912.

Yes — delivery across Delhi NCR takes 2–4 working days, and often just next-day within Delhi city. Prefer to collect it yourself? Same-day pickup is available at our Gokhale Market counter, Monday to Saturday, 11 AM – 5 PM, a short walk from Kashmere Gate Metro Station.

Both. Pay cash on delivery where your pincode is COD-serviceable, or prepay instantly by UPI, bank transfer or card over a call — whichever you’re comfortable with. Every order ships with a proper GST invoice.

On Float, yes — with the lead-acid types this charger is built for. Boost actively charges while the current tapers; Float then holds the battery at a maintenance level, ready for the next power cut. GEL and some AGM types hold at a lower voltage than flooded cells, so confirm the float voltage with Samco and your battery maker before leaving one connected long term. Never connect a lithium-ion or LiFePO₄ battery to this charger.

Divide the amp-hours you need to replace by the current you’ve set, then allow extra time for the tapering final stage. A half-discharged 100Ah battery needs about 50Ah, so at 10A that’s roughly six hours in practice. See the charging-time table above for common battery sizes.

Six months against manufacturing defects, serviced directly at our Delhi works — plus a 3-day return window on unopened goods in original packaging, with return shipping paid by the customer. Full terms are on the warranty and returns page.

Yes. Dealer and wholesale rates are available for battery shops, workshops, fleet operators and resellers, starting at five units. Send your quantity on WhatsApp or call 99539 35912 for a trade quote the same day.