12V 20A Heavy Duty Battery Charger (Inverter & Automotive)
Boost/Float Switch • Variable Knob 0–20A • Digital Meter • Workshop Grade
Inverter Battery Charger 12V 20A (FCBC): A workshop-grade heavy duty charger designed for tubular inverter batteries and also suitable as a car battery charger / truck battery charger. It includes a 0–20A variable knob and FCBC Boost/Float switch for charging + maintenance of 35Ah–220Ah+ 12V lead-acid batteries.
+ GST & Shipping Extra (₹100 per order)
- Modes: Boost (Charge) & Float (Maintain) via Switch
- Current Control: Variable Knob (0 – 20 Amps)
- Battery Support: 35Ah – 220Ah+ (Tubular Inverter, Flat Plate, Lead-Acid, SMF)
- Vehicles: SUVs, Trucks, Buses, Tractors, E-Rickshaw & Inverters
- Charging Voltage: Boost up to ~15V / Float ~13.6V–14.5V (varies by battery condition)
- Meter: Digital Amp Meter (Live Current Reading)
- Application: Heavy Duty Workshop / Automotive Charger
- SKU / MPN: SB-12V20A-FCBC-VAR
Quick Guide: 12V 20A FCBC Charger
1. FCBC Switch Settings
Function: Delivers higher voltage for faster charging (typical peak up to ~15V; model dependent).
Function: Maintains battery at safer float range (~13.6V–14.5V; depends on battery condition) to reduce overcharge risk.
2. Recommended Current (Knob Settings)
Rule of Thumb: Set Amps to approx. 10% of Battery Ah (and reduce if battery heats up).
| Vehicle / Application | Battery Size (Ah) | Knob Setting (A) |
|---|---|---|
| Small Cars (Alto, i10) | 35Ah – 45Ah | 4A – 6A |
| Sedans / SUVs (City, Creta) | 60Ah – 80Ah | 6A – 8A |
| Large SUVs (Fortuner, Thar) | 90Ah – 105Ah | 10A – 12A |
| E-Rickshaw / Inverter | 100Ah – 150Ah | 12A – 15A |
| Trucks / Tractors / Bus | 150Ah – 220Ah+ | 15A – 20A |
👉 Hinglish Tip: Truck ya Tractor ki battery charge karne ke liye 15A–20A set karein (battery size ke hisaab se).
3. How to Operate
- Connect: Attach Red (+) and Black (-) clamps to battery terminals.
- Select Mode: Flip FCBC switch to BOOST for charging.
- Adjust Amps: Turn the knob to set the target amps (refer to table above).
- Finish: When the Amp Meter drops to near 0, the battery is near-full.
- Optional: Flip switch to FLOAT to keep the battery attached safely for maintenance.
20 Amp Charger Speed
With 20A output, this charger is fast for large batteries. Use the Charging Time Calculator below to estimate time based on your battery size.
- Dispatch: 24–48 working hours (Delhi)
- Shipping: Flat ₹100 per order • Pan-India delivery
- Transit: Metro 3–5 days • Rest of India 5–10 days (estimated)
- Exchange/Replacement: 3 days (manufacturing defect / transit damage) • No cash refund
- Proof: Unboxing video required for exchange/replacement claims
- Warranty: 6 months off-site (circuit failure only)
We strive to deliver your orders accurately, in good condition, and on time. Our dispatch workflow is optimized for chargers and electronics.
- Dispatch Timeline: Orders are usually dispatched within 24–48 working hours from our Delhi facility (subject to stock).
- Delivery Partners: We ship via India Post Speed Post, Trackon, and other approved couriers. For bulk consignments: TCI / VRL (as available).
- Transit Time (Estimated):
- Metro Cities: 3–5 business days
- Rest of India: 5–10 business days
- Shipping Charges: Flat ₹100 per order unless specified otherwise. GST as applicable (we confirm the final total on WhatsApp before dispatch).
- Tracking: After dispatch, the tracking ID is shared via WhatsApp/SMS.
Designed for Indian Climate Conditions
- North & Hilly Regions (Delhi, J&K, UP, Punjab): Maintainer mode helps avoid overcharging during long parking and winter starts.
- North East (Assam, Manipur, Meghalaya): FCBC control suits regions with humidity and monsoon weather.
- Coastal Regions (Mumbai, Chennai, Kolkata): Durable design supports humid, salty air conditions.
- South & Central India (Tamil Nadu, Karnataka, Gujarat, Rajasthan, M.P.): Adjustable amps help safer charging during high summer temperatures.
We ship daily from our Delhi facility to all states and major cities across India via Express Courier. Transport options are available for bulk and dealer orders.
- Door-step delivery to 19,000+ pincodes across India.
- Manufacturing and supply experience since 2000.
- Products tested for Indian grid voltage and transport conditions.
Looking for other chargers too?
Common Questions & Price Info
Are you a battery shop owner, auto-electrical dealer, or garage owner? Join the SAMCO BATTERY dealer network to sell reliable chargers with direct supply.
- Wholesale Pricing: Tiered discounts available for bulk quantities.
- Pan-India Transport: Bulk consignments via TCI, VRL, or your preferred transport.
- Marketing Support: Technical catalog + priority updates on new models.
- Direct Supply: Genuine products from Gokhale Market (Delhi).
1. Exchange/Replacement Policy: We offer a 3-day exchange/replacement-only policy for manufacturing defects or transit damage. No cash refund is applicable once the product is dispatched (exchange/replacement only). An unboxing video is required as proof of the product’s condition at the time of delivery.
2. Warranty: This 12V 20A Charger carries a 6-month off-site warranty from the date of invoice, covering internal circuit failure only. Physical damage, wire cuts, misuse, and water exposure are not covered.
3. Order Cancellation: Orders can be cancelled before dispatch for a full refund. Once the shipment is handed over to the courier, cancellation is not possible.
4. Pricing: Prices displayed are for single-unit retail purchases. Dealer and bulk pricing is available on request via WhatsApp.
5. Consumer Grievance: In accordance with the Consumer Protection (E-Commerce) Rules, 2020, for any complaints or queries, please contact our Grievance Officer:
Email: hi@samcobattery.in | Phone: +91 99539 35912
Contact Us
SAMCO BATTERY
21 Gokhale Market, Delhi 110054
Email: hi@samcobattery.in
WhatsApp: +91 99539 35912