NOCO Boost GB70 2000A UltraSafe Jump Starter, 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables, for 8.0L Gas and 6.0L Diesel Engines Review (2026)

What the GB70 is built to jump

The Boost GB70 is rated for 2000 amps and is built to start gasoline engines up to about 8.0 liters and diesel engines up to about 6.0 liters, which covers full size pickups, vans and light commercial diesels in addition to ordinary cars and SUVs. That headroom is the main reason it sits above NOCO's smaller Boost packs, which are sized for four and six cylinder engines rather than big V8s or diesels. Owners who only ever jump a compact sedan will rarely use the full capacity, which is why the site's cons list calls it overkill for a small car. For anyone who tows, runs a diesel truck, or keeps a boat or RV with a large starting battery, the extra amperage is the point of buying this model over a lighter one.

UltraSafe clamps and safety features

NOCO markets the GB70 under its UltraSafe line, which means the clamps are spark proof and the unit includes reverse polarity protection, so connecting the cables backward will not damage the jump starter or the vehicle. This matters most for less experienced users, since a standard jumper cable mistake can otherwise damage electronics on modern vehicles. The lithium battery pack itself is built into a rugged, water resistant enclosure with a rubberized over molded casing, which suits a truck bed, cargo area or garage shelf better than a delicate electronics case would. These safety features are consistent with the rest of the NOCO Boost lineup, just scaled up for the higher current the GB70 delivers to larger engines.

Battery pack, flashlight and power bank functions

Beyond jump starting, the GB70 works as a portable power bank with USB output for charging phones and small devices, and it includes a built in LED flashlight with multiple light modes for roadside work at night. A 12 volt output lets it run small 12VDC accessories like tire inflators through a separate port, which is a useful extra for anyone who already carries 12V gear in their vehicle. The lithium pack is designed to hold a charge for an extended period between uses, so it is reasonable to keep it stored in a garage or truck without needing to top it off every few weeks. These extras add convenience but the core job of the device remains starting a dead battery reliably.

Size, weight and where it fits in a garage

Compared to compact jump starters built for small cars, the GB70 is noticeably larger and heavier, which is the direct trade off for its higher amp rating and bigger internal battery. It is still small enough to store in a truck door pocket, glovebox or garage shelf rather than needing dedicated space, and the UltraSafe cable set stores alongside the unit. Anyone cross shopping within the NOCO lineup should weigh engine size against price and bulk, since a smaller Boost model may cover a daily driver at a lower cost. For a household running one full size truck, a diesel, or mixed vehicles including a boat or RV, the GB70 is sized to cover the largest of them without needing a second unit.

Value for garages with mixed vehicles

The GB70 costs more and weighs more than NOCO's smaller Boost jump starters, which is the direct trade off called out in the site's cons for this pick. That premium buys engine coverage the smaller packs cannot match, along with the same UltraSafe clamp protection and lithium battery reliability that runs through the whole NOCO Boost line. For a garage that only ever sees a compact car, a lower capacity NOCO model is the better value, since the extra amperage here would go unused. For anyone with a full size truck, diesel engine, or several vehicles of different sizes, the GB70 is the pick that avoids buying a second jump starter later for the bigger engine.

Frequently asked questions