NOCO XGC4 56W Boost Power Adapter for GB70, GB150, GB250, GB251 and GB500 UltraSafe Lithium Jump Starters, USB, 56W Power Adapter, One Size. NOCO XGC4 56W Boost Power Adapter. A 56-watt power adapter for rapidly recharging NOCO Boost UltraSafe Lithium Jump Starters models - GB70, GB150, GB250, GB251 and GB500.
