This new rechargeable battery technology is an enhanced form of the NiMH rechargeable batteries that were previously used..
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What is new?
This new rechargeable battery technology is an enhanced form of the NiMH rechargeable batteries that were previously used. These cells go by the names LSD NiMH and RTU NiMH. LSD stands for “low self-discharge” and highlights the key advantage of these new rechargeable battery cells: Their vastly reduced self-discharge compared to standard NiMH rechargeable battery cells. RTU stands for “ready to use” and emphasizes the enhanced product feature of being continually ready to use thanks to the low self-discharge.
What are we replacing?
All SIGMA rechargeable batteries with 1500 mAh and 2100 mAh are being replaced with these new, more resistant power suppliers.
Why are making replacements?
SIGMA supports the ideas of sustainability, energy conservation and environmental protection and advocates the reduction of costs for the consumer.
The benefits at a glance
Very low self-discharge, comparable with modern Lithium-ion rechargeable batteries
After 3 years of storage, RTU NiMH rechargeable batteries still have up to 50% of their charge
RTU NiMH rechargeable batteries need to be charged less often to keep them continually ready for use
SIGMA RTU NiMH rechargeable batteries are supplied pre-charged and immediately ready to use on purchase
Extremely slow self-discharge process minimizes the risk of dangerous deep discharge, which can permanently damage or even destroy the rechargeable battery
No special maintenance is required for RTU NiMH batteries. The risk of misuse is therefore reduced to a minimum
Maintain constant power over 1000 charge cycles
Rechargeable using standard chargers for NiMH rechargeable batteries
From a technical perspective
SIGMA RTU NiMH rechargeable batteries have a new inner structure and a newly develop-
ed separator and cathode. This gives them a lower inner resis-
tance, which leads to a more stable voltage even with higher discharge currents. The batte-
ries are much more efficient with vastly reduced self discharge.
