22
Important
Please read this manual immediately on receipt of the battery before unpacking and installing. Failure to comply with these
instructions will render any warranties null and void.
Care for your safety
No smoking,
no naked flames,
no sparks
Shield
eyes
Read
instructions
Electrical
hazard
Danger
Recycle scrap
batteries.
Contains lead
Electrolyte is
corrosive
Clean all acid splash in eyes
or on skin with plenty of clean
water. Then seek medical help.
Acid on clothing is to be washed
with water
Warning: Risk of fire, explosion, or burns. Do not
disassemble, heat above 60°C (140°F), or incinerate.
Metallic parts under voltage are present on the battery,
avoid short circuit. Do not place tools or items on top of
the battery.
1. Specific Attributes
The specific attributes of this type of battery, for renewable
energy applications, are as follows:
• High cycling (one “cycle” consists of a discharge, of any
depth, followed by a recharge)
• Fast recharge capability
• Deep discharge recovery
• Low rate of self-discharge
• No addition of water required during service life
PowerSafe
®
SBS
®
XC are designed for renewable energy
applications where the battery must undergo repeated cycling
with daily depths of discharge of up to 35% of capacity C
120
(such as rural settlements, communications systems and
lighting systems).
2. Monobloc/Cell Design
The PowerSafe SBS XC monoblocs and cells consist of:
• Positive plates - Thin Plate Pure Lead (TPPL) grid technology
for long cycle life and efficient recharging
• Negative plates - provide a perfect balance with the positive
plates to ensure optimum recombination efficiency
• Separators – low resistance microporous glass fibre mat
separator with high absorption and stability
• Containers and lids - in UL94 V-0 rated flame-retardant PC/
ABS material, highly resistant to shock and vibration
• Electrolyte - high grade dilute sulphuric acid fully absorbed
into separator material to prevent spillage in case of
accidental damage
• Dual-seal terminal design to prevent leakage over the
product life
• Self-regulating pressure relief valves - prevent ingress of
atmospheric oxygen
• Flame Arrestors – built into each bloc/cell for operational
safety
3. Features & Benefits
• Excellent deep discharge recovery and cyclability
• Up to 4,100 cycles at 20% depth of discharge and 1,200
cycles to 60% Depth of Discharge (DoD)
• Vertical or horizontal installation (see PowerSafe SBS XC
Installation, Operation and Maintenance Manual for further
information)
• No topping-up required
4. General Operation Instructions
4.1 Capacity
Capacity is the number of ampere hours (Ah) a battery can
supply for a specific current and an end of discharge voltage.
Capacity varies with the discharge time, discharge rate and
temperature.
The nominal capacity of PowerSafe SBS XC monoblocs and
cells for renewable energy applications is given as follows:
Capacity
(Ah)
Current
(A)
Discharge
Period
(Hours)
End Voltage
(Vpc)
C
120
l
120
120
1.85V
4.2 Discharge Rate:
This is the ratio of discharge current divided by battery
capacity.
4.3 Depth of Discharge (DoD):
This is the capacity removed from the battery compared to total
capacity. It is expressed as a percentage. The battery will be
sized for solar applications with a DoD < 80% for the autonomy
required.
