Nitecore 18650 Rechargeable Battery Low Temp 3.6V 8A 3500Mah Deep Impact NozzleL Dual chuck ISL_SHPSB80 NozzleL Dual chuck BassRev components utilise Alpine’s all new proprietary bass algorithm OPTIM™Sync NL1835LTHP: Sepcially Designed for Low Temperature Environments LOW TEMPERATURE RESISTANT to 40 C Internal Safety Features: • Pressure relief valve activates in the event of a rapid temperature increase • Innovative anode design with high temperature resistance • Microporous barriers protects delicate internal components • Built in PTC to inhibit high current surges Integrated High Performance Protected Circuit 1 Effective at preventing overcharge 2V Protected: Yes