Pure Lead Battery Technology Vs Sealed Lead Acid (SLA)

The Zeus Power Podcast: Pure Lead Battery Technology Vs Sealed Lead Acid (SLA)

*Please note, if DigiKey does not currently carry the battery you need from one of our manufacturers, please reach out to applications.engineering@digikey.com and we can special order it for you.

Q & A

Q: Why would one consider using Pure Lead vs. Traditional Sealed Lead Acid (SLA)?
A: The key reasons to consider the Pure Lead & Pure Lead+Carbon versus regular SLA battery:

  1. Charging time is cut to around one hour versus 8-16 hours on regular SLA battery
  2. The Pure Lead batteries can last in a cyclic application up to 5x longer than regular SLA
  3. The Pure Lead batteries have very long shelf life of 24 months versus 6- 9 months on
    regular SLA battery
  4. The Pure Lead batteries can be left partially discharged for long periods of time, whereas
    regular SLA battery needs to be quickly charged after every use and will be damaged
    when left in partial state of charge

Q: What are the physical size comparisons of traditional SLA vs. car battery vs. Pure Lead
A: A Standard 12 volt 7 amphour SLA battery has a footprint of 4" x 6"
Whereas a Deep-cycle 12V 145 amphour battery footprint is closer to 11" x 13"
and a Pure Lead 12V 150 amphour SLA battery’s footprint is roughly 11" x 22"

Q: What is the cost comparison of Pure Lead vs. traditional Sealed Lead Acid?
A: The Pure Lead cost is roughly 1.4x higher than comparable Sealed Lead Acid

Q: Can these batteries be connected together in series or parallel?
A: Yes, they can be connected in series up to 4 max. There is no limit on the number
connected in parallel except large banks of batteries may need to have equalization
management in place

Q: Is the Pure Lead lineup intended to compete against SLA or Lithium Iron Phosphate (LFP)
A: Both! This technology competes and invades both SLA and LFP applications.
For Sealed Lead, Pure Lead is better because: Standby Life is about 2x longer than regular SLA,
the cycle life is up to 5x longer than regular SLA, charging is 10x or higher faster than regular
SLA. Pure Lead can be left in PSoC (Partial State of Charge) for long period of time and regular
SLA cannot without incurring a permanent damage, shelf life of Pure Lead without top charging
is 24 months versus 6-9 months on regular SLA.
For Lithium Iron Phosphate, Pure Lead is better because: Pure Lead cost is about 2x lower than
comparable Lithium Iron Phosphate. Pure Lead is simpler to use as it does not require BMS
(Battery Management System). Shipping Pure Lead is less costly than Lithium Iron Phosphate
since it does not have the lithium shipping regulations. Pure Lead can be charged at below
freezing temperatures. Pure Lead outperforms Lithium Iron Phosphate in applications where
very high peak current is required.

Q: Do these Pure Lead and Pure Lead + Carbon batteries have a Battery Management System
(BMS) or other safety circuits integrated?
A: No battery management system (BMS) is required for these Pure Lead and Pure Lead +
carbon. For safety, Pure Lead contains pressure valves releasing gas pressure during heavy
overload and or during overcharging.

Q: Do these Pure Lead and Pure Lead + Carbon batteries have a stop / start function or Cold
Cranking Amps (CCA)?
A: Pure Lead and Pure Lead + Carbon will work phenomenally in Stop / Start functionality and
will generally outperform their flooded / SLA counterparts in CCA performance.

Q: What are the size ranges we offer with Pure Lead?
A: The minimum AH are 90 up to 210 AH and the voltage is 12V. It can be connected up to 4 in
series, as stated before, for a total of 48V.

See also:
Li-ion / LiPo Battery Storage and Permanent Capacity Loss
How To Use, Maintain and Dispose of Batteries
Battery Storage and Handling FAQs with Aaron Cunningham from Zeus Battery
Battery Shelf Life
DigiKey ZEUS Battery Products
All DigiKey Battery Products
The Zeus Power Podcast Page