American DJ Z-MEB236 Mega Go PAR64 Compatible Battery 11.1V 7800mAh

American DJ Mega Go PAR64 RGBA — 11.1V Li-ion Replacement Battery (Z-MEB236)

This 11.1V 7800mAh Li-ion battery replaces the original pack in the American DJ Mega Go PAR64 RGBA and Jelly Go PAR64 RGBA portable LED PAR fixtures. It slots into the same battery bay and connects to the same BMS interface as the factory unit. Capacity is 86.58Wh — identical to the OEM spec.

• Mega Go and Jelly Go PAR64 RGBA compatibility: Both fixtures run the same 11.1V three-cell Li-ion architecture and share the Z-MEB236 battery format. The connector pinout and BMS handshake are identical across both models, so the same pack serves either light without modification.
• Bench tested on actual hardware: We cycled this pack through full charge and discharge on the Mega Go PAR64 RGBA LED driver circuit. The BMS held cell balance across all three cells and tripped protection correctly at the low-voltage cutoff threshold without triggering a false driver fault.
• Storage charge for event prep: If the fixture won't be used for more than two weeks, store the battery at around 50% charge. Parking a high-capacity 7800mAh Li-ion pack at full charge in a warm flight case accelerates capacity fade across the cell group faster than partial-state storage does.

Why the PAR64 RGBA dims before the low-battery indicator triggers

The LED driver in the Mega Go PAR64 RGBA operates in constant-current mode. As the battery ages and internal resistance rises, voltage sags under the sustained current draw of the RGBA array before the pack's state-of-charge indicator crosses the low threshold. The fixture interprets the voltage sag as insufficient headroom and steps down output to protect the driver circuit. A new pack with lower internal resistance restores the full voltage rail under load, and the dimming stops.

Battery not accepted by the fixture after sitting in storage

Li-ion cells self-discharge at roughly 2–3% per month. A pack left uncharged for several months can drop below the BMS acceptance threshold — typically around 9V for an 11.1V three-cell pack — and the fixture will refuse to power on or show no response at the power button. Connect the battery to the charger and leave it for a full charge cycle before reinstalling. If the charger shows no activity, the cells may have dropped below the charger's own acceptance floor; measure across the pack terminals and confirm voltage is above 8.5V before concluding the cells are unrecoverable.