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Deep Cycle and RV Batteries

Best Deep Cycle Battery for Inverter (2026): 5 Compared

Five deep cycle batteries for inverters compared on capacity, chemistry, cycles, certifications and warranty, with every figure taken from the listings.

Best Deep Cycle Battery for Inverter (2026): 5 Compared
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An inverter pulls hard and deep, which is exactly what deep cycle batteries are built for. The best deep cycle battery for inverter use holds voltage under load, survives repeated deep discharges and matches the inverter voltage. We compared five deep cycle batteries from 35Ah AGM to 24V lithium on capacity, chemistry, cycles, certifications and warranty, using only what each listing publishes.

SolarKitHQ earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.

Quick picks

The picks

dumfume 24V 100Ah

dumfume 24V 100Ah

dumfume9.7/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 24V 100Ah LiFePO4 battery with 2560Wh, UN38.3/UL1973 certification and a 5-year warranty.

Pros

  • 24V 100Ah with 2560Wh stated
  • UN38.3 and UL1973 certified stated
  • IP65 rating stated
  • 5-year warranty stated

Cons

  • 24V, needs a 24V inverter and charger
  • 41.67lbs, heavier than the 12V AGM pair
  • 4000+ cycles at 100% DOD, per the listing
  • Spec table dims differ slightly from the title size
Detailed Review

The listing states a 24V 100Ah LiFePO4 battery with 2560Wh at 25.6V, a 100A BMS, 2560W continuous output, UN38.3 and UL1973 certification, an IP65 rating, low-temperature cutoff, Grade-A cells, 4000+ cycles at 100% DOD, a 10-year lifespan, 41.67lbs at 20.91 by 8.11 by 8.56 inches, 2S4P expansion, and a 5-year warranty.

Who it's for: 24V inverter banks that want the most certified pick here. Who should skip it: anyone building a 12V system.

Its Solar Score of 9.7/10 comes from performance 33/35, build 24/25, value 20/25, safety 6/10 and warranty 3/5: 86 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Capacity24V 100Ah, 2560Wh
BMS100A
RatingIP65
Weight41.67lbs

Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. UN38.3 and UL1973 certified stated, IP65 rating stated, so safety scores 6 of 10. 5-year warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

WOXABHSL 200Ah

WOXABHSL 200Ah

WOXABHSL9.7/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V 200Ah LiFePO4 battery with a 200A BMS, 2560W output and a 1-year warranty.

Pros

  • 200Ah with 200A BMS stated
  • 2560W max power output stated
  • FCC and UL certificates stated
  • 15000 cycles at 60% DOD stated

Cons

  • Title says 2PCS while the specs list 1 unit; trust one 200Ah battery
  • 1-year warranty, shorter than the 5-year pick
  • 48.6lbs, heavier than the AGM pair
  • No IP rating stated
Detailed Review

The listing states a 12V 200Ah LiFePO4 battery with a 200A BMS, 2560W max power output, FCC and UL certificates, A+ grade cells, 4000 cycles at 100% DOD (6000 at 80%, 15000 at 60%), 4S4P expansion, 48.6lbs, and a 1-year warranty. The title says 2PCS while the specs list 1 unit; trust one 200Ah battery.

Who it's for: 12V inverter banks that want 200Ah in one battery. Who should skip it: anyone who needs a longer than 1-year warranty.

Its Solar Score of 9.7/10 comes from performance 32/35, build 22/25, value 20/25, safety 6/10 and warranty 2/5: 82 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Capacity12V 200Ah
BMS200A
Output2560W max
Weight48.6lbs

Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. FCC and UL certificates stated, so safety scores 6 of 10. 1-year warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.

Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

OPTIMA D34M

OPTIMA D34M

OPTIMA9.6/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V 55Ah AGM dual-purpose battery with 750 CCA, a 120-minute reserve and a 24-month term.

Pros

  • 55Ah AGM dual purpose stated
  • 750 CCA with 120-minute reserve stated
  • Spiralcell with 99.99% pure lead stated
  • 24-month term stated

Cons

  • 55Ah, less than the lithium picks
  • 43.5lbs for 55Ah
  • No BMS or lithium modes
  • Maintenance-free sealed AGM only
Detailed Review

The listing states a 12V 55Ah AGM dual-purpose battery with 750 CCA, 870 MCA, a 120-minute reserve, dual SAE and 5/16-inch stainless steel stud posts, Spiralcell with 99.99% pure lead, 15 times more vibration resistance than flooded, up to 3 times the life, 43.5lbs at 10.06 by 6.88 by 7.94 inches, and a 24-month term.

Who it's for: inverter and starting duty where AGM is required. Who should skip it: anyone who wants lithium capacity per pound.

Its Solar Score of 9.6/10 comes from performance 30/35, build 22/25, value 19/25, safety 5/10 and warranty 3/5: 79 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Capacity12V 55Ah
CCA750
Reserve120 minutes
Weight43.5lbs

Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. Sealed AGM, Spiralcell with 99.99% pure lead stated, so safety scores 5 of 10. 24-month term stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Mighty Max 35Ah

Mighty Max 35Ah

Mighty Max Battery9.6/10 Solar Score
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The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V 35Ah AGM battery with UL certification, spill-proof build and a 1-year warranty.

Pros

  • 35Ah AGM with UL certification stated
  • Spill-proof, mounts in any position
  • 1-year warranty stated
  • High discharge rate stated

Cons

  • 35Ah, the smallest here
  • Spec table lists 24lbs and 23.2lbs; trust 24lbs
  • No cranking amps stated
  • No IP rating stated
Detailed Review

The listing states a 12V 35Ah AGM battery with UL certification, spill-proof construction, mounting in any position, high discharge rate, wide operating temperatures, 7.76 by 5.12 by 7.01 inches, and a 1-year warranty. The spec table lists 24lbs and 23.2lbs; trust the 24lbs battery weight.

Who it's for: small 12V inverter setups and solar storage. Who should skip it: anyone who needs more than 35Ah.

Its Solar Score of 9.6/10 comes from performance 28/35, build 21/25, value 21/25, safety 5/10 and warranty 2/5: 77 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Capacity12V 35Ah
CertUL stated
MountAny position
Size7.76 x 5.12 x 7.01 in

Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. UL certified, spill-proof AGM stated, so safety scores 5 of 10. 1-year warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.

Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

XS Power D4800

XS Power D4800

XS Power9.6/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 12V 72Ah AGM battery with 950CA, Group 48 size and a 30-day warranty.

Pros

  • 72Ah AGM with 950CA stated
  • 3000A AGM battery stated
  • Group 48 size stated
  • 30-day warranty stated

Cons

  • 30-day warranty, the shortest here
  • 47.6lbs, the heaviest per Ah
  • No cranking amps beyond 950CA stated
  • Sparse bullet data
Detailed Review

The listing states a 12V 72Ah AGM battery with 950CA, 3000A rating, Group 48 size, M6 terminals, 47.6lbs at 14 by 10 by 11 inches, and a 30-day warranty.

Who it's for: car audio and performance cars that need cranking power. Who should skip it: anyone who needs a longer warranty.

Its Solar Score of 9.6/10 comes from performance 28/35, build 21/25, value 20/25, safety 5/10 and warranty 2/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Capacity12V 72Ah
CA950
SizeGroup 48
Weight47.6lbs

Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. Sealed AGM construction stated, so safety scores 5 of 10. 30-day warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.

Battery safety. Charge with a charger and settings that match the stated chemistry, fuse the positive lead as the manual directs, cover terminals, keep within the stated temperature range, and never charge a damaged battery.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

As an Amazon Associate I earn from qualifying purchases.

More picks to compare

Compare the picks

Battery Solar Score Ah Chemistry Warranty Amazon
dumfume 24V 100Ah 9.7/10 100 LiFePO4 5-year View on Amazon
WOXABHSL 200Ah 9.7/10 200 LiFePO4 1-year View on Amazon
OPTIMA D34M 9.6/10 55 AGM 24-month View on Amazon
Mighty Max 35Ah 9.6/10 35 AGM 1-year View on Amazon
XS Power D4800 9.6/10 72 AGM 30-day View on Amazon

Specifications are manufacturer rated as listed, collected 20 October 2026.

How we scored them

The Solar Score weighs performance, build, value, safety and warranty. For an inverter battery, safety means the certifications and the BMS the listing actually states; one is UN38.3 and UL1973 certified, one states FCC and UL certificates, and one is UL certified. All five state a warranty term. How we pick explains the weights.

Product Solar Score Perf. /35 Build /25 Value /25 Safety /10 Warranty /5
dumfume 24V 100Ah 9.7 33 24 20 6 3
WOXABHSL 200Ah 9.7 32 22 20 6 2
OPTIMA D34M 9.6 30 22 19 5 3
Mighty Max 35Ah 9.6 28 21 21 5 2
XS Power D4800 9.6 28 21 20 5 2

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

How to choose the best deep cycle battery for inverter

Chemistry and voltage

The dumfume is 24V 100Ah LiFePO4 with 2560W continuous output; the WOXABHSL is 12V 200Ah LiFePO4 with 2560W max; the OPTIMA, Mighty Max and XS Power are 12V AGM. A 24V battery needs a 24V inverter. See our best LiFePO4 battery for inverter picks for the lithium ranking.

Battery Ah Chemistry Warranty
dumfume 24V 100Ah 100 LiFePO4 5-year
WOXABHSL 200Ah 200 LiFePO4 1-year
OPTIMA D34M 55 AGM 24-month
Mighty Max 35Ah 35 AGM 1-year
XS Power D4800 72 AGM 30-day

Cycles and capacity

The WOXABHSL states 4000 cycles at 100% DOD up to 15000 at 60%; the dumfume states 4000+ at 100% DOD; the OPTIMA claims up to 3 times the life of flooded. The lithium picks carry far more watt-hours per pound. Browse our best lithium battery for inverter picks for more lithium options.

Terminals and fit

The OPTIMA has dual SAE and 5/16-inch stainless steel stud posts; the XS Power has M6 terminals; the dumfume has marine terminals. Check the inverter cables against the posts before you buy. Browse every power inverters guide for the inverter side of the build.

Sizing Notes

  • Check the voltage: 24V (dumfume) needs a 24V inverter; 12V on the rest.
  • Check the Ah: 200 (WOXABHSL), 100 (dumfume), 72 (XS Power), 55 (OPTIMA), 35 (Mighty Max).
  • Check the cranking: 750 CCA (OPTIMA), 950CA (XS Power); the lithium picks state none.
  • Check the warranty: 5 years (dumfume), 1 year (WOXABHSL, Mighty Max), 24 months (OPTIMA), 30 days (XS Power).

Frequently Asked Questions

Which is best for a 24V inverter?

The dumfume 24V 100Ah.

Which has the most Ah?

The WOXABHSL at 200Ah.

Which AGM can also start an engine?

The OPTIMA D34M, dual purpose with 750 CCA.

Which states the longest warranty?

The dumfume with 5 years.

Which is the smallest?

The Mighty Max at 35Ah.

dumfume 24V 100Ah
Still deciding? Our top pickdumfume 24V 100Ah
Check price on Amazon

See every blog guide and all How we pick pages. Also see our best inverter charger for lithium battery.

More picks: inverter chargers for lithium batteries and all blog guides.