DONGNI 56W 14V Fast Charger — GB70/GB150 Compatible, Reinforced Cable, Rapid Refill

Compact 56W 14V fast power adapter that replaces the original GB70/GB150 charger to refill jump starter units much faster than a standard 2A USB charger.

This DONGNI replacement charger is engineered to restore compatible lithium jump starters quickly and reliably. It supplies a stable 14V, 56-watt output designed specifically for models that use the GB70-style charging port (not compatible with 5V or USB-C versions). Reinforced wiring, strain-resistant connectors and built-in protection systems make it a durable, travel-ready alternative to OEM adapters.

Which devices will this DONGNI charger work with?

The adapter is made for a range of jump starter models that accept the GB70-style 14V input. It supports multiple DONGNI and XGC-labeled power units that specify a 14V, 56W charging input. Confirm your unit’s voltage and connector type before purchase to ensure compatibility.

• Compatible: GB70, GB150, GB250+, GB251+, GB500, GB500+ jump starter models
• Output: 14V DC, 56W (not compatible with 5V chargers)
• Connector: GB70-style barrel plug — check your original cord
• Power input: 100–240V AC for global use

How fast will this charger recharge my jump starter?

This 56W adapter significantly reduces recharge times versus conventional 2A USB adapters by delivering higher, regulated power tailored to the battery pack. Exact charging durations depend on the jump starter’s capacity and its remaining charge level, but you can expect several-times faster top-up performance in most cases.

• 56-watt output for high-rate charging
• Faster than standard 2A USB brick chargers for compatible models
• Integrated regulation to prevent overcharging and overheating
• Manufacturer-stated performance varies by battery size and condition

Is the DONGNI charger safe for regular use and travel?

The adapter includes multiple safety circuits to protect both the charger and the battery: over-current, over-voltage, short-circuit and thermal protection are built in. Its universal 100–240V AC input makes it suitable for international travel when paired with the correct plug adapter for your country.

• Reinforced cable and strain-relief at connectors for longevity
• Protections for over-charge, over-current, over-voltage, short-circuit, and overheating
• Universal voltage (100–240V) for worldwide compatibility
• Not compatible with USB-C or 5V-only models — verify before buying

What comes in the box and how do I use it?

Each purchase includes one DONGNI 56W replacement charger and a simple user manual. Using it is straightforward: connect the DC barrel plug to the jump starter’s charging port, plug the adapter into a mains outlet, and monitor charging according to your jump starter’s indicator lights or manual.

• Box contains: 1 x 56W replacement charger, 1 x user manual
• Plug into 100–240V AC; connect barrel plug to the device
• Observe device charge indicators; unplug after fully charged
• Not intended for USB-C or 5V-only units

Who is this for? This charger is aimed at owners of DONGNI/XGC jump starters and compatible GB70-style units who need a fast, robust replacement adapter. It’s a practical choice for garage use, roadside kits and travelers who require a reliable 14V, 56W charging source—provided their device lists GB70-style compatibility. If your unit uses USB-C or a 5V input, look for the correct charger version instead.