---
product_id: 699567029
title: "Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack)"
brand: "timeusb"
price: "₩1035547"
currency: KRW
in_stock: true
reviews_count: 5
category: "Timeusb"
url: https://www.desertcart.kr/products/699567029-timeusb-12v-140ah-lifepo4-lithium-battery-with-low-temp-protection
store_origin: KR
region: South Korea
---

# Bluetooth 5.0 real-time monitoring 140Ah high capacity Low-temp protection down to -20°C Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack)

**Brand:** timeusb
**Price:** ₩1035547
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your journey with smart, tough, and lightweight energy!

## Quick Answers

- **What is this?** Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack) by timeusb
- **How much does it cost?** ₩1035547 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/699567029-timeusb-12v-140ah-lifepo4-lithium-battery-with-low-temp-protection)

## Best For

- timeusb enthusiasts

## Why This Product

- Trusted timeusb brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power That Lasts Longer:** 140Ah LiFePO4 capacity delivers 40% more power than standard Group 31 batteries, keeping your marine or RV systems running strong.
- • **Robust & Reliable Safety:** Upgraded 150A BMS with 700A surge capacity and IP65-rated enclosure guards against electrical faults, humidity, and salt spray—perfect for marine adventures.
- • **Smart Monitoring On-The-Go:** Bluetooth 5.0 lets you track voltage, current, temperature, and battery health directly from your smartphone—never get caught off guard again.
- • **Built for Extreme Conditions:** Advanced low-temperature protection ensures reliable performance in freezing environments, automatically managing charge and discharge to protect battery life.
- • **Lightweight & Easy to Install:** At just 28.1 lbs, it’s one-third the weight of lead-acid alternatives, fitting seamlessly into existing Group 31 trays for hassle-free upgrades.

## Overview

The Timeusb 12V 140Ah LiFePO4 Lithium Battery combines high-capacity deep cycling power with cutting-edge Bluetooth 5.0 monitoring and advanced low-temperature protection. Designed for marine, RV, and off-grid use, it features a robust 150A BMS with 700A surge capability and an IP65-rated enclosure for durability in harsh environments. Weighing only 28.1 lbs, it offers 40% more power than standard Group 31 batteries while being significantly lighter and easier to install, making it the smart choice for professionals demanding reliable, long-lasting energy solutions.

## Description

Buy Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack): 12V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Waited to make review after I beat them up - All I can say is WOW. I bought 16 of these for my expedition marine trawler with 2000w of solar. When I am at anchor I have a full size residential fridge/ a large box freezer/ and a large ice maker/ wine cooler PLUS all the little items that run on the boat. These batteries for last 6 month have had the hell beaten out of them between the solar panels and the diesel generator pumping 100amps of charge through the huge inverter. EVERY day these things get beat on and randomly bank charged from diesel generator and charged by the main drive diesels alternators etc. these things pump out power and take huge charges from all sources. We had 7 people on the boat for 4 weeks and I will say I am IMPRESSED!!!! Way better than my firefly AGM bank they replaced. Bravo for such an great product at such a killer price point ($180 per 100ah battery) Took a chance from buying the expensive battle Borne batteries to save a TON of money,,,, And it is paying off so far!!!!! I’ll update next year after I continuously beat of them moving forward!!! Buy them. You won’t regret
Review: Good Batteries-Excellent Customer Service - Good high quality true deep cycling batteries built tough with excellent customer service. Although I've installed a lot of solar since the 1990's, I am now sold on using Lithium Iron Phosphate on home solar installations to replace more typical lead-acid type batteries. Also perfect as an RV house battery. First thing I noticed was that their "Users Manual" was exceptionally well written and easy to read without any confusing language or translation errors. This was a welcome beginning. Communication with the seller, Time-USB is also nothing less than excellent. They gave me a heads-up when the batteries shipped, and they arrived very well packaged with plenty of protection and sooner than expected. If you have technical questions regarding set-up, the folks at Time-USB will be happy to walk you through the process quickly. I worked with Tanya and Gerri, who I found very knowledgable, easy to understand and answered all of my questions completely. I'm liking these new batteries because they are much lighter than Lead-Acid, much safer than most other Lithium-ion types, and if they work as specified, they will be far less expensive in the long run. Unlike lead acid, which can only tolerate about a 50% depth of discharge on a regular basis, you can discharge these all the way down without damage thanks to the built-in battery management circuitboard, or BMS. Although you will get more cycling lifetime if the depth of discharge is more conservative. These batteries work wonderfully along with a good quality, properly configured charger or solar charge controller, like the Morningstar Tristar MPPT series pictured, although custom settings were required. I'm also using Victron's BMV-712 Smart Battery Monitor with Bluetooth to easily and remotely monitor the system's production, battery status and power usage. Another nice thing about LiFePO4 (or LFP) is their very high (99%) charge efficiency compared to lead-acid at 94% or much lower as they age. Speaking of age, if installed and configured correctly, you should theoretically be able to get up to 5x the cycling life from these Lithium Iron Phosphate (LFP) type lithium-ion batteries, perhaps up to 10 years making these a perfect choice for off-grid solar or similar high cycling, high demand battery systems. Lastly, if you should have a problem, Time-USB tech support will resolve it, they also have a 5 year warranty on their products. I've ordered from them 3 times, and always had a good experience. Quality Built Tough!

## Features

- 【BLUETOOTH 5.0 REAL-TIME MONITORING】Monitor critical power metrics—voltage, current, and capacity, temperature and battery health—directly from your phone. Stay confident and focused on every fishing trip without worrying about unexpected power loss
- 【LOW-TEMPERATURE PROTECTION】Designed to operate efficiently even in cold environments, Timeusb 12V 140Ah Lithium battery features low-temperature protection, ensuring reliable performance in various weather conditions. Automatically disconnects from charging when the cell temperature drops below 32°F (0°C). The discharging cut-off temperature is -4°F (-20°C), and charging resumes at 41°F (5°C).
- 【UPGRADED 150A BMS WITH FULL PROTECTION】Engineered to withstand electrical and environmental challenges. The 150A BMS (700A surge) offers full-circuit protection, with an IP65 enclosure that effectively resists humidity and salt spray.
- 【COMPACT & LIGHTWEIGHT DESIGN】At only 28.1 lbs, this battery is 1/3 the weight of a lead-acid equivalent, making it easy to lift and install. It seamlessly fits into existing Group 31 battery trays, yet delivers 140Ah of capacity—40% more power than a standard Group 31 battery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DMN6PZX5 |
| Amperage | 100 Amps |
| Batteries | 1 12V batteries required. |
| Best Sellers Rank | #86,208 in Health & Household ( See Top 100 in Health & Household ) #175 in 12V Batteries |
| Brand | Timeusb |
| Customer Reviews | 4.6 4.6 out of 5 stars (435) |
| Date First Available | December 24, 2025 |
| Item Weight | 28.1 pounds |
| Item model number | Li-Battery01 |
| Manufacturer | Timeusb |
| Manufacturer Part Number | 12V140Ah BT 5.0 |
| Model | Timeusb 12V 140Ah LiFePO4 Battery |
| Product Dimensions | 13 x 6.77 x 8.5 inches |

## Product Details

- **Battery Capacity:** 150 Amp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Timeusb
- **Item Weight:** 28.1 Pounds
- **Manufacturer:** Timeusb
- **Size:** 12.8V140Ah BT 5.0
- **Terminal:** M8
- **UPC:** 617230903393
- **Vehicle Service Type:** Boat, Lawn Mower, Off Grid, RV, Trolling Motor
- **Voltage:** 12.8 Volts

## Images

![Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack) - Image 1](https://m.media-amazon.com/images/I/71QYe1SvIIL.jpg)
![Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack) - Image 2](https://m.media-amazon.com/images/I/713j4kWIudL.jpg)
![Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack) - Image 3](https://m.media-amazon.com/images/I/816H0jq33iL.jpg)
![Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack) - Image 4](https://m.media-amazon.com/images/I/81Cn-MKwGpL.jpg)
![Timeusb 12V 140Ah LiFePO4 Lithium Battery with Low-temp Protection, 5.0 Bluetooth, 150A BMS, 700A Discharge @1s, Group 31 Deep Cycle Trolling Motors Batteries for Yacht, Boats, RVs, Marine(1-Pack) - Image 5](https://m.media-amazon.com/images/I/71ZEux60OxL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Waited to make review after I beat them up
*by M***. on January 15, 2025*

All I can say is WOW. I bought 16 of these for my expedition marine trawler with 2000w of solar. When I am at anchor I have a full size residential fridge/ a large box freezer/ and a large ice maker/ wine cooler PLUS all the little items that run on the boat. These batteries for last 6 month have had the hell beaten out of them between the solar panels and the diesel generator pumping 100amps of charge through the huge inverter. EVERY day these things get beat on and randomly bank charged from diesel generator and charged by the main drive diesels alternators etc. these things pump out power and take huge charges from all sources. We had 7 people on the boat for 4 weeks and I will say I am IMPRESSED!!!! Way better than my firefly AGM bank they replaced. Bravo for such an great product at such a killer price point ($180 per 100ah battery) Took a chance from buying the expensive battle Borne batteries to save a TON of money,,,, And it is paying off so far!!!!! I’ll update next year after I continuously beat of them moving forward!!! Buy them. You won’t regret

### ⭐⭐⭐⭐⭐ Good Batteries-Excellent Customer Service
*by C***. on February 26, 2023*

Good high quality true deep cycling batteries built tough with excellent customer service. Although I've installed a lot of solar since the 1990's, I am now sold on using Lithium Iron Phosphate on home solar installations to replace more typical lead-acid type batteries. Also perfect as an RV house battery. First thing I noticed was that their "Users Manual" was exceptionally well written and easy to read without any confusing language or translation errors. This was a welcome beginning. Communication with the seller, Time-USB is also nothing less than excellent. They gave me a heads-up when the batteries shipped, and they arrived very well packaged with plenty of protection and sooner than expected. If you have technical questions regarding set-up, the folks at Time-USB will be happy to walk you through the process quickly. I worked with Tanya and Gerri, who I found very knowledgable, easy to understand and answered all of my questions completely. I'm liking these new batteries because they are much lighter than Lead-Acid, much safer than most other Lithium-ion types, and if they work as specified, they will be far less expensive in the long run. Unlike lead acid, which can only tolerate about a 50% depth of discharge on a regular basis, you can discharge these all the way down without damage thanks to the built-in battery management circuitboard, or BMS. Although you will get more cycling lifetime if the depth of discharge is more conservative. These batteries work wonderfully along with a good quality, properly configured charger or solar charge controller, like the Morningstar Tristar MPPT series pictured, although custom settings were required. I'm also using Victron's BMV-712 Smart Battery Monitor with Bluetooth to easily and remotely monitor the system's production, battery status and power usage. Another nice thing about LiFePO4 (or LFP) is their very high (99%) charge efficiency compared to lead-acid at 94% or much lower as they age. Speaking of age, if installed and configured correctly, you should theoretically be able to get up to 5x the cycling life from these Lithium Iron Phosphate (LFP) type lithium-ion batteries, perhaps up to 10 years making these a perfect choice for off-grid solar or similar high cycling, high demand battery systems. Lastly, if you should have a problem, Time-USB tech support will resolve it, they also have a 5 year warranty on their products. I've ordered from them 3 times, and always had a good experience. Quality Built Tough!

### ⭐⭐⭐⭐⭐ Great Battery
*by S***N on February 8, 2023*

When it arrived I put it on my smart LifePO4 charger and it was at 35%. After charging it I looked at how many Ah it had and it said 58ah fully charged. More than the battery is rated for. I take that as a good sign. I use this battery on a Hammerhead Pool vacuum. The manufacturer of hammerhead says to get at least 25ah to last 1.2 hours continuous run time. Well I used the battery for over 1.75 hours and when i put it on the charger it had only used 6.8ah. I then was very surprised so I did a test and used it again and didn’t charge it. Then used it again cleaning pools, when I finally put it back on the charger it still had 12ah left. I can say I love the fact it has continuous 100% power through the whole battery cycle so I never slowed down. With a marine grade battery I would get about 7 pools done then the hammerhead only worked at max 1/2 power. Now with this smaller much less weight battery I can go many trips without having to worry about it dying or getting weak. Another thing I love is no deep cycle cleanings anymore. I would get about 150-175 charges from a standard battery and this one says over 2000 so it surely pays for itself in no time at all. I would buy this battery again for sure. A plus battery in my book and great price point. Order if you are looking for this size battery. Thank you for your time reading this review

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---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-09*