32
treated, the longer it will last and the better the lifetime will be (to a certain limit). The main factors
which can negatively impact this would be extremes of temperature, sustained higher or lower
temperatures and higher charge or discharge rates (especially if sustained or continuous).
Is it possible to switch off remotely during discharge…i.e. forced shut-down option?
Not via CAN, but via the on/off switch at the CAN connector it is possible.
What are the safety thresholds for the Module?
General:
Fuse: Siba 5005038.100 (one shot
– 100A)
Short circuit protection: 300A / 0.1ms (reacts faster than the fuse)
Over discharge current protection 1: 65A / 5s
Over discharge current protection 2: 85A / 50ms
Over charge current protection 1: 65A / 5s
Over charge current protection 2: 85A / 50ms
Individual:
Over voltage protection
Easy Blade 24:
29.75V / 4s.
Easy Blade 48:
59.5V / 4s
Under voltage protection
Easy Blade 24:
18.2V / 2s.
Easy Blade 48:
36.4V / 2s
Over voltage protection
Easy Block 24:
30V / 4s.
Easy Block 48:
60V / 4s
Under voltage protection
Easy Block 24:
16V / 2s.
Easy Block 48:
32V / 2s
What is the recommended SOC level for lifetime management?
Easy Block -
max 80% average SOC to extend the expected life up to 10+ years.
Easy Blade -
max 80% average SOC to extend the expected life up to 4+ years.
What is the shelf life of the modules?
Easy Blade:
Shelf life: 24 months when shipped from VARTA, conservative estimate
Easy Block:
Shelf life: 24 month when shipped from VARTA, conservative estimate
Do you have any recommendations for the storage/charging of these batteries?
In general, storage around room temperature / lower temperatures will be better for long-term battery
life (this is applicable to all lithium batteries). For best cycle life time, charge rates of max. 0.5C-rate
would be recommended. Higher charge rates on a continuous basis will reduce the cycle life.
For the
Easy Blade
, regular charge rates >0.7C will reduce cycle life significantly. For the Easy Block, the cell
technology is not so affected. It should be avoided where possible to store the batteries when empty
for an extended period; they are better stored with some charge. At the shipping condition of ~25%
state of charge level, we estimate 24 months storage conservatively but for such long-term storage we
would always recommend a basic voltage check once per year.
13.6
Mechanical
For parallel mechanical connection, we'll use the “module connectors”. Where can I get it?
Two module connectors and two screws are included in every box.
Summary of Contents for 56650 764 098
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