Samlexpower PST-1000-12 Owner's manual - Section 7 |
22 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 23
seCtIOn 7 |
General Information on Batteries for
Powering Inverters
PleaseconsiderusingthefollowingProgrammableLowBatteryCut-off/“Battery
Guard”ModelsmanufacturedbySamlexAmerica,Inc.www.samlexamerica.com
- BG-40(40A)–forupto400W,12Vinverteror800W,24Vinverter
- BG-60(60A)-forupto600W,12Vinverteror1200W,24Vinverter
- BG-200(200A)-forupto2000W,12Vinverteror4000W,24Vinverter
Depth of Discharge of Battery and Battery Life
Themoredeeplyabatteryisdischargedoneachcycle,theshorterthebatterylife.Using
morebatteriesthantheminimumrequiredwillresultinlongerlifeforthebatterybank.
AtypicalcyclelifechartisgivenintheTable7.5below:
tABLe 7.5: tYPicAL cYcLe LiFe cHARt
Depth of Discharge
% of Ah capacity
cycle Life of Group
27 /31
cycle Life of Group
8D
cycle Life of Group
Gc2
10
1000
1500
3800
50
320
480
1100
80
200
300
675
100
150
225
550
note:Itisrecommendedthatthedepthofdischargeshouldbelimitedto50%.
Series and Parallel connection of Batteries
Series connection
Fig 7.2: Series Connection
Whentwoormorebatteriesareconnectedinseries,theirvoltagesaddupbuttheir
Ahcapacityremainsthesame.fig.7.2aboveshows4piecesof6V,200Ahbatteries
connectedinseriestoformabatterybankof24Vwithacapacityof200Ah.ThePosi-
tiveterminalofBattery4becomesthePositiveterminalofthe24Vbank.TheNegative
terminalofBattery4isconnectedtothePositiveterminalofBattery3.TheNegative
6V
6V
Battery 4
Battery 3
6V
Battery 2
6V
Battery 1
24V Inverter
or 24V Charger
Cable “A”
Cable “B”