Toro 30308 - Page 313

ChargingtheBattery
Tominimizedamagetothebatteryandallowthebatterytochargefully,dothe
followingslowchargingprocedure.Youcandothischargingprocedurewitha
constantcurrentbatterychargerthatislocallyavailable.
IMPORTANT
Followthemanufacturer'sinstructionswhenusingabatterycharger.
Note:Usespecicgravityofthebatterycellsisthemostaccurateprocedure
ofdeterminingthebatterycondition.
1.Determinethebatterychargelevelfromeitheritsspecicgravityoropen
circuitvoltage.
BatteryChargeLevelSpecicGravityOpenCircuitVoltage
100%
1.26512.68
75%
1.22512.45
50%
1.19012.24
25%
1.15512.06
0%
1.12011.89
2.Determinethechargingtimeandrateusingthemanufacturer'sbattery
chargerinstructionsorthefollowingBatteryChargeLevelTable(page6–85).
BatteryChargeLevelTable
BatteryChargeLevel(PercentofFullyCharged)
Battery
Reserve
Capacity
(Minutes)
75%50%25%0%
80orless3.8hrs
@
3A
7.5hrs
@
3A
11.3hrs
@
3A
15hrs
@
3A
81to1255.3hrs
@
4A
10.5hrs
@
4A
15.8hrs
@
4A
21hrs
@
4A
126to1705.5hrs
@
5A
11hrs
@
5A
16.5hrs
@
5A
22hrs
@
5A
171to2505.8hrs
@
6A
11.5hrs
@
6A
17.3hrs
@
6A
23hrs
@
6A
above2506hrs
@
10A
12hrs
@
10A
18hrs
@
10A
24hrs
@
10A
Groundsmaster
®
3280-D/3320
Page6–85
ElectricalSystem:ServiceandRepairs
05138SLRevB