Boeing Has Approved Units As Alternative IRS Standby Power
Supplies
Concorde Battery said in a news release Thursday that Boeing has
approved Concorde’s RG-150-1 & RG-150-2 battery packs as
alternative IRS standby power supplies for Boeing models 717 and
MD-90 Series. Concorde says its sealed lead acid recombinant gas
(RG), absorbed glass mat (AGM) batteries are a more economical
solution with no maintenance requirements and reduced cost per
flight hour.
RG-150-1 & RG-150-2 (heated version) are 3.5 Ah, 24 volt
standby batteries designed to float directly on the DC buss
eliminating the need for a dedicated charger. The high inrush
current from the buss provides fast recovery time and extended
battery life. RG-150-1 & RG-150-2 batteries are 24 volt battery
packs with no internal boosting circuitry.
The straightforward design should eliminate the ADIRU power-up
test nuisance faults caused by the original 12 volt ACME P/N
264BS101-1 & Marathon P/N BP-95 power supplies that are boosted
to 24 volts. Lead acid technology does not have a memory and does
not require unique charging equipment. Concorde RG Series batteries
may be serviced in any battery facility, including nickel cadmium
service facilities. RG-150-1 & RG-150-2 are constructed with
field replaceable battery packs. RG-150 Series batteries
dimensionally conform to ARINC 404A, ¼ ATR Short and are
TSOC173 approved.
Concorde batteries are a plug in replacement using MD 90 Service
Letter MD-90-34-104- A and Boeing 717 Service Letter
717-SL-34-111-A.
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