Packing	High capacity Li-Ion battery 14.8V 5200mAh is made of 8pcs High quality Sanyo/LG/Other Top Brand Korea 2600 mAh 18650 Li-Ion cylindral cells, and packed by 4 series and 2 parallel (4S2P), with with one PCB & one 12.0V DC regulator The battery pack is wrapped by heavy duty heat shrink tube with 12.0V DC regulator on the top of 3.0" (76.2mm) x 2.8" (70mm) plane Separate charging and discharging terminal
Voltage	12.0V (working) 16.8V ( peak) 11.0V ( cut-off)
Capacity	5200 mAh min. (77 wh)
Protection	One PCB (5A) installed with the battery pack and protects the battery from Overcharge (>16.8V) Overdischarge ( < 11.0 V) Over drain ( >5 Amp) Short circuits One 4.2 Amp polyswitch installed to limit max. discharging current at 4.2A and to protect wrong polarity One 12.0V DC regulator on the top of 3.0" (76.2mm) x 1.7" (42mm) plane
Prewired	Charging terminal: 2" two pins universal connector (female connector) Discharging Treminal: 4' long TrailTech Coaxis Female Plug installed with one DC regulator circuit to keep max. output voltage below 16V The Trailtech plug matched to Trailtech light (not for two pin water-proof connector) Excluded TrialTech Coaxis Male plug, It is used for connecting the light by yourself if the light connector didnot match our Trail-Tech female plug's battery. Need additional plug? please click here to buy seperately.
Max. Discharging Rate	4.0 Amp limited by 12.0V DC regulator
Dimensions (LxWxH)	3.0" (76.2mm) x 1.7" (42mm) x 4.2" (107mm)
Weight	645grams (1.4 Lb)
Smart Tips	You may choose our 14.8V 1.5A Smart Li-Ion battery charger to recharge this battery pack. The estimated charging time is 4 hours. You must charge battery at charging terminal. Please keep your old bike lighting connector. You may need to link our wire to a special connector to make your lighting work properly. In case our connectors cannot fit your light. If you would like to use this charger in your car, you can choose our 110W DC-AC inverter, then you can charge your battery everywhere.
Applications	Design for someone who wants to over voltage to burn brighter for their 12V Halogen light. However, due to over voltage, the bulb life will be shorten!
Warning	Li-Ion battery may exploded if mis-using. We are not responsible for any damages or losses caused by misusing (included but not limited to: mis-charging, mis-discharging, any changes of this battery pack, mis-assembling batterypacks) . Always charge battery with attention. Battery pack shall be placed on a fire-proof place to avoid any accident Please check battery polarity before plug battery into light. For safety warning please see the link here
How to charge the pack via charging terminal(Excluded 1.5Amp Charger)