# NOCO GX4820: industrial charger 20A (48V)

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> NOCO GX4820: 960 W, 20 A charger for 48V batteries from 55 to 425 Ah, deep-cycle lead-acid or lithium-ion. The differences with the GX2440 and GX3626.

**Category:** [Battery chargers](https://bateriasonline.es/en/battery-chargers) → NOCO

- **Canonical URL**: https://bateriasonline.es/en/noco-gx4820-industrial-charger-48v-20a
- **Language**: en
- **Brand**: NOCO
- **Reference**: BOL-NOCO-GX4820
- **MPN**: GX4820
- **Last updated**: 2026-11-10

## Quick description

The GX for 48V packs: 20 A, 960 W, an IP66 aluminium housing and modes for deep-cycle lead-acid and lithium-ion.
- 48V, 20 A
- 55-425 Ah
- AGM+ mode 62.4 V
- Supply 54.4 V / 10 A
- Aluminium IP66, 6 kg

## Description

## NOCO GX4820: industrial charger 20A (48V)

The NOCO GX4820 is the 48V member of the GX series. It is meant for electric vehicles with a 48V pack, such as golf carts, pallet trucks or utility vehicles, with batteries from 55 to 425 Ah.
With the same 960 W as the GX2440 and GX3626, the current drops to 20 A because the voltage is higher. If your vehicle is 24V or 36V, this is not your charger: pick the model whose voltage matches.
It offers NORM (57.6 V), COLD/AGM (58.8 V), AGM+ (62.4 V) and LI-ION (58.4 V) modes, Repair at 64 V and a 54.4 V / 10 A power supply.

### Features

- •   20 A of current for 48V batteries.
- •   From 55 to 425 Ah.
- •   Takes deep-cycle lead-acid and lithium-ion.
- •   Removable AC and DC cables with water-resistant fastening.
- •   Inhibit (20 A relay) and remote LED ports.
- •   One-piece aluminium, IP66.
- •   Maintenance without overcharge, energy-saving standby.

### Technical data

| Mains input voltage | 100-240 VAC, 50-60 Hz |
|---|---|
| Working voltage (AC) | 85-240 VAC, 50-60 Hz |
| Output power | 960 W max. |
| Efficiency | approx. 90% |
| Charging current | 20 A |
| Battery voltage | 48 V |
| Battery chemistries | Deep-cycle lead-acid (wet, gel, MF, calcium, EFB, AGM) and lithium-ion (incl. LiFePO4) |
| Battery capacity | 55-425 Ah; maintains all battery sizes |
| Charging modes | NORM 57.6 V · COLD/AGM 58.8 V · AGM+ 62.4 V · LI-ION 58.4 V · Repair 64 V (5 A) |
| Power supply mode | 54.4 V / 10 A |
| Back current drain | < 5 mA |
| Operating temperature | -20 °C to +50 °C |
| Storage temperature | -40 °C to +70 °C |
| Housing protection | IP66 |
| Cooling | Natural convection |
| Cables | Removable AC and DC, 1.93 m each |
| Auxiliary ports | Inhibit (20 A relay) and remote LEDs |
| Dimensions (L x W x H) | 304 x 215 x 100 mm |
| Weight | 6 kg |
| Protection rating | IP66 |
| Efficiency | 92 % approx. |

### In the box

- •   GX4820 industrial charger
- •   AC cable
- •   DC cable with heavy-duty eyelets
- •   User guide, information guide and warranty

### Common questions

Why fewer amps than the GX2440?
All three GX models are 960 W: at 48V that means 20 A, against 40 A at 24V.
What is in the box?
The charger, an AC cable, a DC cable with heavy-duty eyelets and the documentation.
Can it take outdoor work?
Its IP66 aluminium housing resists water, dust, impacts and UV, and it operates from -20 °C to +50 °C.

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*bateriasonline.es — Batteries and accessories · 2026-11-11*