Offgridtec® AGM 4,2Ah 20HR 12V - Deep Cycle Solar Battery

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Delivery time appr. 1-3 workdays

Order within the next 1 days 7 hours and 22 minutes so the order is shipped at Monday .

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  • 2-01-001475
11.17€ *

Prices incl. VAT plus shipping costs

Offgridtec AGM solar batteries are explicitly designed for use in solar and hybrid systems. AGM... more

Offgridtec AGM solar batteries are explicitly designed for use in solar and hybrid systems. AGM technology is clearly superior to conventional lead-acid batteries with liquid electrolyte and offers the following advantages:

Advantages of using Offgridtec AGM Technology

  • absolutely safe from leakage, regardless of the position of the battery
  • 100% maintenance-free over the entire service life
  • Life expectancy up to 10 years (depending on usage pattern)
  • Highest quality level: Our batteries are all A-quality and made of the best materials. This can best be seen in the weight of the batteries. Compare our products with those of other manufacturers!
  • can be discharged deeper than lead-acid batteries
  • mature technology, used in over 1000 Offgridtec solar systems
  • very cycle-resistant, therefore predestined for use in solar systems

AGM batteries are somewhat more expensive to purchase than lead-acid batteries, but this pays off after just a few years, as lead-acid systems are much more maintenance-intensive and short-lived than AGM-based storage solutions.

AGM is the first choice especially for smaller energy generation systems with a maximum storage capacity of 4-8KwH.

Technical data

Battery type: AGM Cycle type
Storage capacity 20HR(0.21A,1.75V) : 4.2Ah
Storage capacity 10HR(0.4A,1.75V) : 4Ah
Storage capacity 5HR(0.7A,1.75V) : 3.55Ah
Storage capacity 1HR(2.75A,1.75V): 2.75Ah
System voltage: 12V
Charge voltage cyclic use: 14.4V-14.9V
Charging voltage standby use: 13.6V-13.8V
Max. charging current: 1.26A
Self-discharge: 3% (per month/at 25°C)
Terminal type: 4.75mm/0.8mm blade terminal
Dimensions: 90 x 70 x 101*mm (*+6mm terminal)
Life expectancy: up to 10 years (depending on usage pattern)

Battery regulation

You are legally obliged to return batteries. You can return them after use to our sales outlet or to a local municipal collection point.

Important information according to Battery regulation

Ordinance on the return and disposal of used batteries. Batteries and rechargeable batteries do not belong in household waste. Consumers are legally obliged to return used batteries. They can be returned to Offgridtec.com or to public collection points in the community.

Pursuant to § 10 of the Battery Act, a deposit of 7.50 Euro including VAT must be charged by the seller if the end consumer does not have a used starter battery on hand at the time of purchase. If the seller does not charge a deposit because the used battery has been disposed of properly or has been exchanged for new, this amount is not deductible from the purchase Price.

Capacity 4Ah
Ambient temperature range discharged -20....+40°C
delivery_time 1-3 Werktage
shippingcosts 4,90 €
Overload protection yes
Capacity 1hr 2,75Ah (2.75A,1.75V)
Load ambient temperature range 0....40°C
System voltage 12V DC
Warranty 3-year manufacturer's warranty on production defects
Features Particularly cycle resistant
Self-discharge max. 3% (per month / 25°C)
Capacity 20hr 4,2Ah (0.21A,1.75V)
Capacity 10hr 4 Ah (0.4A,1.75V)
Capacity 5hr 3,55Ah (0.71A,1.75V)
Charging voltage empty 13,6V-13,8V (-20mV/ °C)
Charging voltage cyclic 14,4V-15V (-30mV/ °C)
max. charging current 1,26A
Manufacturer Offgridtec
Weight 1,6 kg
Dimensions 90 x 70 x 101* mm (*+6mm Terminal)
Scope of application indoor area
Average service life Up to 10 years
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Empfohlener Ladestrom

Wie hoch ist der empfohlene Ladestrom für die AGM Batterien?

10% der Batteriekapazität sollte als Ladestrom zur Verfügung stehen. Bei einer 100Ah Batterie wären das also rund 10A Ladestrom. Es ist wichtig die Batterie regelmäßig komplett voll zu laden, damit eine möglichst lange Lebensdauer erreicht werden kann.

Entladungsreichweite

Bis zu wie viel % kann die Batterie regelmäßig ohne großen Verlust der Lebenserwartung entladen werden?

Faustregel Blei-Säure Batterien (AGM, GEL): Maximal 50% nutzbare Batteriekapazität.
Beispiel: Eine 100Ah AGM Batterie hat eine nutzbare Kapazität von 50Ah.
Je kleiner davon der genutzte Anteil einer Batterie ausfällt, umso länger die Lebenserwartung.
Optimal ist es, die Batterie max. um 30% zu entleeren, entspricht am Beispiel 20-30Ah optimal nutzbare Kapazität.

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