Redodo 12V 165Ah Group 31 Bluetooth LiFePO4 Battery

3rd of 37 we've scored in LiFePO4 Batteries

3rd of 37 in LiFePO4

Redodo 12V 165Ah Group 31 Bluetooth LiFePO4 Battery

Name: Redodo 12V 165Ah Group 31 Bluetooth LiFePO4 Battery
Brand: Redodo
SKU: R12V165-165-BT-4-A100

SVT Score, Top

6.2

Usability5.4/10Social7.0/10The SVT Score is placed on its category's range

Versus

5.4

SVT SCORESRead review

Redodo’s 12.8 V, 165 Ah Group 31 LiFePO4 battery with a 165 A BMS, built-in Bluetooth, a low-temperature charge cut-off and an IP65 case.

$395

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SKU: R12V165-165-BT-4-A100 Category: LiFePO4 Batteries Brand: Redodo

Usability

5.4 out of 10

Capacity6.0

It stores 2,112 Wh, so it scores 6 on capacity.

Efficiency8.0

At 33 lb on Redodo's spec table it holds 64.0 Wh per pound, so it scores 8 on efficiency.

Operating Range5.0

Redodo rates its BMS at 165 A maximum continuous discharge, 1.0C on 165 Ah, with an 825 A one-second surge, so it scores 5 on operating range.

Lifespan6.0

Redodo rates it for 4,000 cycles at 25°C, 0.2C and 100% depth of discharge, and its feature text claims 4,000 to 15,000 cycles, with no end-of-life capacity published and no manual on Redodo's manuals page, so the 4,000 is scored and taken one rung down for the missing end point, and it scores 6 on lifespan.

Features6.0

It has Bluetooth built in, a low-temperature charge cut-off that resumes at 41°F (5°C), an IP65 rating and four-in-series, four-in-parallel expansion, but no heating and no CAN or RS485 port, so it scores 6 on features.

Verification2.0

Redodo cites only CE, FCC, RoHS and UN38.3 for model AE-A21121B-0D; no listing turned up in the Intertek, UL, LabTest, TÜV SÜD, TÜV Rheinland or SGS directories or on the California Energy Commission list in October 2026, so it scores 2 on verification.

Warranty & Support6.0

Redodo's warranty policy gives its 12 V batteries of 20 Ah and up 5 years, with no proration of the repair or replacement term, so it scores 6 on warranty and support.

Price

$394.99 at redodopower.com.

Summary

2.1 kWh in A Group 31 case

The Redodo 12V 165Ah Group 31 Bluetooth (AE-A21121B-0D) is a 12.8 V, 165 Ah LiFePO4 battery for RV, marine and solar storage, in a Group 31 case measuring 13 x 6.77 x 8.5 in.

Verdict

It suits a buyer who wants about 2 kWh and phone monitoring from a single Group 31 space, and who will not need charging below freezing or closed-loop inverter communication.

Strengths

2,112 Wh in a BCI Group 31 case
64.0 Wh per pound at 33 lb on the spec table
165 A continuous charge and discharge825 A for one second
Bluetooth built inplus a low-temperature charge cut-off
5-year warranty with no proration stated

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Drawbacks

No end-of-life capacity published for the 4,000-cycle rating
No heatingso it cannot charge below 32°F (0°C)
No CAN or RS485 port for closed-loop inverter communication
Spec table gives 33 lbRedodo's Amazon listing 32.15 lb
No manual on Redodo's manuals page

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Social score

7.0 out of 10

Reddit7.0 out of 10

Liked

No complaints on a new travel trailer
App called nice

An r/traveltrailers owner running this 165 Ah battery on a new travel trailer reported no complaints and called its app nice, in a thread on lithium battery picks (October 2025); it is the only owner comment found.

Google8.0 out of 10

Liked

Measured 167 Ah at a 20 A discharge
App paired easily and refreshed quickly
BMS cut off at 180 A and reset after about 30 seconds

Complaints

No built-in heating
Tested for only a couple of weeks

The Camping Nerd, which says Redodo sent the battery and links it through an affiliate link, measured 167 Ah at a 20 A discharge, found the app paired easily, saw the BMS cut off at 180 A and reset after about 30 seconds, confirmed the low-temperature charging protection, and recommended it for a single-battery setup with a 2,000 W inverter, while noting it has no heating and was tested for only a couple of weeks (May 2026).

YouTube7.0 out of 10

Liked

Measured 166 to 171 Ah across four testers
Held about 180 A for five minutes
Low-temperature cut-off stopped charging in the cold

Complaints

Will Prowse disliked the internal design
Clark's Adventure had to balance the cells first
Will Prowse suspected cells smaller than 165 Ah

Every tester found carries a tie to Redodo. Off Grid Basement, which says Redodo asked for the review and gives a Redodo discount code, measured 170.78 Ah, held about 1,900 W at about 180 A for five minutes and saw charging stop in the cold (May 2025, about 5,400 views); Jasonoid, which thanks Redodo for sending the battery, measured 168.06 Ah at 33 A and called it awesome (May 2025, about 6,700 views); Clark's Adventure, which says Redodo asked for the review, had to balance the cells before it performed and then named it one of his favorites (May 2025, about 3,800 views); and Will Prowse, whose video carries an Amazon affiliate link, measured 166 to 168 Ah, said it worked but disliked the internal design he found, and suspected cells smaller than 165 Ah (June 2025, about 114,000 views).

AmazonProduct-line6.0 out of 10

Redodo's Amazon US listing for the 12V 165Ah Bluetooth (B0F3J6J9C4) reads 4.4 from 26 ratings, in a variation family whose styles also carry 100 Ah, 410 Ah, dual-purpose and 51.2 V batteries; a second listing for the same battery sold for marine use (B0F135NSY5) reads 4.6 from 5 ratings, 60 percent five-star and 40 percent four-star (October 2026).

User reviewsNot scored

The retailer pool is blank: Redodo sells on Walmart as its own marketplace seller and the reviews on its listings are reposted from redodopower.com or flagged Incentivized, and Home Depot, Lowe's, Best Buy, West Marine and Bass Pro carry no Redodo listing.

Trustpilot

Trustpilot rates redodopower.com 4.4 from 159 reviews on a page Redodo claimed in June 2025, pays for and invites its customers to, with 73 percent five-star against 16 percent one-star (October 2026).

Track record

The BBB has no listing for Redodo, Redodo Power or redodopower.com, searched in October 2026.
No CPSC or Health Canada recall names Redodo or Shenzhen Maicheng, searched in October 2026.

Not countedExcluded

Not counted in any pool: redodopower.com's own review widget and customer-story pages, Redodo's YouTube channel, Facebook page and Redodo Community Facebook group, its GoAffPro and ShareASale affiliate programs, or the tester videos its product pages feature.

Summary

Brand-level

4.4 on Trustpilot, no BBB profile, no recalls

Specs

Capacity2,000-2,999 Wh
AC OutputNot applicable
System Voltage12 V
Panel PowerNot applicable
Charge CurrentNot applicable
Safety ListingNone verifiable
Cell TypeNot applicable
Low-Temp ChargingLow-temperature cut-off
Warranty5 Years
MonitoringBluetooth built in
Weight33.0 lb

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At a glance

13 x 6.77 x 8.5 in
M8 terminals
ABS housing
≤40 mΩ internal resistance

Company

Redodo is the brand of Shenzhen Maicheng Technology Innovation Co., Ltd. of Shenzhen, China, which holds its US trademarks and FCC grants, and its press releases give 2020 as its founding year.

Where it sells

It sells direct from redodopower.com, which ships US orders from US warehouses, and through its own Amazon and Walmart seller accounts, with separate stores for Canada, Germany, France, Spain and Japan.

Description

The Redodo 12V 165Ah Group 31 Bluetooth (model AE-A21121B-0D, store SKU R12V165-165-BT-4-A100) is a 12.8 V, 165 Ah (2,112 Wh) LiFePO4 battery with prismatic cells and a 165 A BMS: 165 A maximum continuous charge and discharge, 2,112 W maximum continuous output, an 825 A one-second surge, 14.4 V ± 0.2 V charge voltage and a 33 A recommended charge current, charging from 32°F to 122°F (0 to 50°C) and discharging from -4°F to 140°F (-20 to 60°C), with a low-temperature charge protection that recovers at 41°F (5°C) battery temperature. It has Bluetooth built in (Bluetooth 5.0 on Redodo's Amazon listing) for voltage, state of charge and capacity on a phone, internal resistance of 40 mΩ or less, an IP65 protection class, an ABS case and M8 terminals. It measures 13 x 6.77 x 8.5 in, a BCI Group 31 size, and weighs 33 lb on the spec table (32.15 lb on Redodo's Amazon listing). Up to four connect in series and four in parallel, to 33.79 kWh. Redodo's manuals page lists no manual for it; The Camping Nerd found two M8 bolts and a manual in the box. It sells as a 2-pack for $782.08 and a 4-pack for $1,548.36, with a 20 A charger for $473.83 and a 40 A charger for $565.98, and in Redodo's 2.1kWh Off-Grid Solar Kit with a 40 A MPPT controller and 2,000 W inverter ($728.42) and 4.2kWh Off-Grid Solar Kit, two batteries with a 40 A MPPT controller and 3,000 W inverter-charger ($1,394.81). Redodo's 2.1kWh DIY Solar Generator page pairs it with a 40 A charger and battery box for $689.32, and with a 40 A MPPT controller and 2,000 W inverter for $757.72.