6
1.5 Personal Protective Equipment
When handling or working near a battery:
• Use Personal Protective Equipment, including clothing, glasses, insulated gloves,
and boots.
• Do not wear metal rings, watches, bracelets, or necklaces.
2. ITEMS SHIPPED IN THE BOX
Table 2-1, ELEMENT ESS box contents
Items Description
1 Battery Module
1 CAT5 Cable
4 Screws (M6)
1 Ground Wire
1 set Serial Number Labels
3. SPECIFICATIONS
All specifications in this document are published @25ºC / 77ºF.
3.1 Electrical Specifications
Table 3-1, ELEMENT ESS Electrical Specifications
Electrical Specifications 48-48-5120 / 48-48-5120-H
Nominal Voltage 51.2 V
Energy 5120 Wh
Capacity 1 Hr 100 Ah
Charge Bulk Voltage - Bulk VDC 55.2 V
Charge Absorption Voltage - U1 MAX 55.2 V
Charge Float Voltage - U2 53.6 V
Charge Termination Current
(a)
2.5 A
Low Voltage Disconnect Recommended 48.0 V
Low Voltage Disconnect
(b)
40.0 V
Max. Continuous Discharge Current 100 A
Nominal Charge Current 50 A
Max. Continuous Charge Current 100 A
Peak Charge Current (10 seconds) 200 A
Peak Discharge Current (3 seconds) 220 A
Breaker (K-Curve) Dual 100 A (2-Pole ganged)
Maximum short circuit fault current (IBF / ½ IBF) 3.8 kA (100 ms) / 1.9 kA (100 ms)
Arc Flash Incident Energy IEm 0.112 Cal/cm
2
Arc Flash Incident Energy AFB 9.4 cm
(a)
Charge termination current is permitted to be less than specified.
(b)
Low Voltage Disconnect is based on 2.5 VPC under load. In no load conditions, do not allow the battery module
to self-discharge below 3.0 VPC.
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