LONGGO batteries are made from select, matched lithium polymer cells (LiPo). The, per utility patented, type of battery fabrication ensures maximum service life and safety as well as the greatest convenience when fastening. Ready-made screw down points with rubber bushings, similar to a servo, ensure an elastic, vibration-reducing suspension. For fastening, the batteries are screwed to a small wood block with 3 or 4 screws - and that's it.
LONGGO batteries have two parallel connection cables, one for contacting the DPSI systems and one for charging the battery, without having to unplug it from the DPSI. The charging cable, thanks to its innovative housing with cover panel, with multiplex high-current plug, can be screwed directly to the fuselage side wall or on ribs inside the fuselage. A clean and practical solution!
LONGGO batteries can be arranged in parallel for charging! This means a V-cable is connected to the battery charger outlet. Each end of the V-cable is then plugged into the charging socket of the LONGGO battery. For both LONGGO batteries, both the plus and minus poles are connected to each other by the V-cable. This is possible because the LONGGO batteries are always discharged from the DPSI uniformly and both batteries thus always have the same voltage. LiPo batteries also exhibit a characteristic charging curve that allows this charge. The charging current can be doubled for charging in this case, since even though two batteries do have the same voltage due to being in parallel, they also have double capacity. The number of cells set on the battery charger with two cells, i.e. 7.4V rated voltage or 8.4V charging voltage, always stays the same.