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WOXABHSL 12V 100Ah LiFePO4 Battery vs Duracell Ultra Group 27M AGM Marine Battery

Buy the WOXABHSL LiFePO4 if you want a light, long-lived battery for solar, trolling motors or off-grid use. Buy the Duracell Ultra Group 27M if you need a drop-in marine or RV starting battery with real cranking amps and a name brand behind it. The lithium unit wins on weight, cycle life and usable capacity; the Duracell wins on cold-cranking power, fitment and proven lead-acid simplicity. Owner feedback on the WOXABHSL is thin, 4.1 from 18 ratings, so treat it as an unknown brand with good paper specs.

  • Choose the WOXABHSL LiFePO4 if you are building solar storage, running a trolling motor or replacing a deep-cycle bank and want roughly half the weight and many more cycles.
  • Choose the Duracell Ultra Group 27M if you need to start an outboard or engine, fit a standard Group 27 tray, and want a recognized brand with 620 cold-cranking amps.

Prices

  • WOXABHSL 12V 100Ah LiFePO4 Battery: $149.99 at Walmart (last seen Nov 12)
  • Duracell Ultra Group 27M AGM Marine Battery: $299.99 at Batteries Plus (last seen Nov 9)
  • Difference: the WOXABHSL 12V 100Ah LiFePO4 Battery is $150.00 cheaper than the Duracell Ultra Group 27M AGM Marine Battery at the latest prices (Nov 9 and Nov 12)
WOXABHSL
12V 100Ah LiFePO4 Battery

WOXABHSL 12V 100Ah LiFePO4 Battery

12V 100Ah LiFePO4 Battery

4.1(18 ratings)
$149.99at WalmartChecked Nov 12
See all prices and details
Visit Walmart
Pros
  • Light enough to carry and install alone
  • Very long cycle life at partial depth of discharge
  • Built-in BMS with low-temperature charge protection
  • Expandable up to 4S4P for larger banks
  • Flat voltage curve keeps output steady as it drains
Cons
  • 100A BMS cannot crank an engine
  • Few ratings and an unfamiliar brand
  • Charging below freezing is blocked until it warms up
  • Needs a lithium-compatible charger
Duracell
Duracell Ultra BCI Group 27M 12V 100AH 620CCA AGM Deep Cycle Marine RV Battery

Duracell Ultra Group 27M AGM Marine Battery

Duracell Ultra BCI Group 27M 12V 100AH 620CCA AGM Deep Cycle Marine RV Battery

$299.99at Batteries PlusChecked Nov 9
See all prices and details
Visit Batteries Plus

Store links may earn us a commission. Price via Klarna.

Pros
  • 620 CCA starts outboards and engines
  • Standard Group 27 size drops into most marine trays
  • Duracell brand with broad retail support
  • Works with ordinary lead-acid chargers
  • Handles cold charging without cutoff
Cons
  • Heavy, around 60 lbs
  • Short deep-cycle life compared with lithium
  • Only about half its capacity is usable in deep cycling
  • Slower recharge and voltage sag under load

What separates them

WOXABHSL 12V 100Ah LiFePO4 BatteryDuracell Ultra Group 27M AGM Marine Battery
ChemistryLiFePO4 lithiumAGM lead-acid
WeightAbout 22 lbsRoughly 60 lbs for a Group 27 AGM
Cycle life4,000 full cycles at 100% depth of dischargeSeveral hundred deep cycles typical for AGM
Cranking power100A BMS limits surge current; not a starter battery620 CCA for engine starting
Usable capacityAbout 95% usable with a flat discharge curveAbout 50% usable before damage on deep discharges
Cold weatherLow-temp cutoff blocks charging below freezing; discharges to -20CCharges and discharges in cold but loses capacity
FitmentGeneric 12V case; check your tray and terminalsStandard BCI Group 27 footprint
Brand track recordNewer brand, 4.1 from 18 ratingsDuracell, widely sold and serviced

Price history

  • Duracell Ultra Group 27M AGM Marine Battery: lowest $299.99 on Nov 10 at Batteries Plus.

Prices at every store

WOXABHSL 12V 100Ah LiFePO4 Battery

  • WalmartNew

    In stockSold by WOXReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $149.99Free shippingChecked Nov 12
    Visit Walmart
Prices and history →

Duracell Ultra Group 27M AGM Marine Battery

  • Batteries PlusNew

    In stock

    $299.99Checked Nov 9
    Visit Batteries Plus

Store links may earn us a commission. Price via Klarna.

Prices and history →

Specs compared

SpecWOXABHSL 12V 100Ah LiFePO4 BatteryDuracell Ultra Group 27M AGM Marine Battery
vehicle_model12v 100ah—
Nominal voltage12 volts—
Capacity100Ah—
Cell chemistryLiFePO4—
Cycle life15,000 deep cycles at 60% Depth of Discharge—
BMS current100A—
Expansionup to 4S4P—
Operating temperature-20C to 60C—
Trolling motor thrust30-70 lbs thrust—
Low-temp cutofflow-temperature charging protection—
Surge protectionintegrated TVS technology—
Unit count1 Count—
Show all 16 specsShow fewer specs
SpecWOXABHSL 12V 100Ah LiFePO4 BatteryDuracell Ultra Group 27M AGM Marine Battery
Battery Technology—Lead-Acid
Type—Batteries
Batteries—Vehicle Battery
Input Voltage (V)—12.0

What reviewers say

WOXABHSL 12V 100Ah LiFePO4 Battery

  • 4.1 / 518 ratings

With only 18 ratings at 4.1 out of 5, feedback is thin but mostly positive. Buyers describe it as a light, working replacement for lead-acid in solar and trolling motor setups, with a few complaints about delivered capacity and cold-weather charging.

What people mention
  • WeightPraisedBuyers like that it is far easier to carry and install than the lead-acid battery it replaces.
  • CapacityMixedMost say it delivers close to its rating, but some report less usable capacity than expected.
  • Cold chargingMixedThe low-temperature cutoff protects the cells, but owners find charging stalls in freezing weather until the battery warms.
  • BMS limitsCriticisedA few buyers hit BMS shutdowns when pulling heavy loads near the 100A limit.

Questions and answers

Which is better for a trolling motor?
The WOXABHSL. It is rated for 30 to 70 lbs of thrust, weighs far less, and keeps steady voltage as it drains. The Duracell's strength is cranking, not sustained deep discharge.
Can the WOXABHSL start my boat engine?
No. Its 100A BMS is sized for deep-cycle loads, not the high surge a starter needs. Use the Duracell for starting, or keep a dedicated starting battery.
Which lasts longer?
The WOXABHSL by a wide margin. It is rated for 4,000 full cycles; a Group 27 AGM typically gives several hundred deep cycles before capacity drops noticeably.
Is the Duracell worth stepping up to over the lithium?
Only if you need cranking amps, a standard Group 27 fit, or cold-weather charging without cutoff. For storage and deep cycling, the lithium is the stronger choice.
Do I need a special charger for the WOXABHSL?
Yes. Use a lithium-profile charger or one with a LiFePO4 setting. A standard lead-acid charger may not fully charge it and can shorten its life.
Will the Duracell fit where my old Group 27 was?
Yes. It uses the standard BCI Group 27 footprint, so it drops into most marine and RV trays. Check terminal orientation before you buy.

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