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TCL 40R 5G
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TCL 40R 5G Battery test

We put the TCL 40R 5G through our rigorous DXOMARK Battery test suite to measure its performance in autonomy, charging and efficiency. In these test results, we will break down how it fared in a variety of tests and several common use cases.

Overview

Key specifications:

  • Battery capacity: 5000 mAh
  • 15W charger (not included)
  • 6.6-inch, 720 x 1612, 90 Hz, LCD display
  • Mediatek Dimensity 700 (7 nm)
  • Tested ROM / RAM combination: 64 GB + 4 GB

Scoring

Sub-scores and attributes included in the calculations of the global score.

TCL 40R 5G
TCL 40R 5G
123
battery
147
Autonomy
164

221

119

195

134

198

84

224

101

212

106

205

141

194

Key performances

Charging Time
2 days 17h
Battery life
Charging Time
1h25
80% Charging time
Charging Time
2h44
Full charging time
Quick Boost
2h27 autonomy
after 5-minute charge

Pros

  • Good autonomy overall with more than 2.5 days when used moderately
  • Good autonomy when calling and gaming
  • Low discharge currents when calling
  • Less than 1% lost per night

Cons

  • Long charging time at 2 hours and 44 minutes to a full charge
  • Low autonomy gain after a quick 5-minute charge
  • Weak on-the-go performances
  • High discharge currents when using the camera and navigation

The TCL 40R 5G lands among the top half our battery database with a very good global score.

When used moderately, the TCL 40R 5G’s battery lasted more than 2.5 days. Autonomy was very good during the typical usage scenario tests, and when evaluating the individual usages indoor. Overnight, the device lost less than 1% of power per night. However, the 40R 5G’s autonomy performance outdoors was mixed, with a below average showing when using the camera and the navigation, but an excellent one when calling.

With a small 15W charger, the TCL 40R 5G charging experience was poor. It took more than 2.5 hours to fully replenish the battery, and the autonomy recovered after a quick 5-minute charge was extremely low.

The device’s charge efficiency was also poor, with a high residual consumption of the charger itself when the device was unplugged. Discharge currents were quite low during our typical usage scenario and when calling or streaming video or music. But they were high when testing individual use cases outdoor, meaning that the device is not perfectly optimized.

Compared with devices from the same Advanced segment ($200-$399), the TCL 40R 5G ranked below average. It showed a good autonomy when testing indoor and an average efficiency score. But its charging score was among the lowest for this price range.

Test Summary

About DXOMARK Battery tests: For scoring and analysis in our smartphone battery reviews, DXOMARK engineers perform a variety of objective tests over a week-long period both indoors and outdoors. (See our introductory and how we test articles for more details about our smartphone Battery protocol.)

The following section gathers key elements of our exhaustive tests and analyses performed in DXOMARK laboratories. Detailed performance evaluations under the form of reports are available upon request. Do not hesitate to contact us.

Battery Charger Wireless Display Processor
TCL 40R 5G 5000mAh 15W
(not included)
- LCD
720 x 1612
MediaTek Dimensity 700
Oppo A78 5G 5000mAh 33W
(included)
- LCD
720 x 1612
Mediatek Dimensity 700
Samsung Galaxy A34 5G 5000mAh 25W
(not included)
- OLED
1080 x 2340
MediaTek Dimensity 1080

Autonomy

147

TCL 40R 5G

195

Honor X7b
How Autonomy score is composed

Autonomy score is composed of three performance sub-scores: Home / Office, On the go, and Calibrated use cases. Each sub-score comprises the results of a comprehensive range of tests for measuring autonomy in all kinds of real-life scenarios.

Light Usage
98h
Light Usage
Active: 2h30/day
Moderate Usage
65h
Moderate Usage
Active: 4h/day
Intense Usage
39h
Intense Usage
Active: 7h/day

Home/Office

164

TCL 40R 5G

221

Honor X7b

A robot housed in a Faraday cage performs a set of touch-based user actions during what we call our “typical usage scenario” (TUS) — making calls, video streaming, etc. — 4 hours of active use over the course of a 16-hour period, plus 8 hours of “sleep.” The robot repeats this set of actions every day until the device runs out of power.

Typical Usage Scenario discharge curves

On the go

119

TCL 40R 5G

195

Samsung Galaxy M51

Using a smartphone on the go takes a toll on autonomy because of extra “hidden” demands, such as the continuous signaling associated with cellphone network selection, for example. DXOMARK Battery experts take the phone outdoors and perform a precisely defined set of activities while following the same three-hour travel itinerary (walking, taking the bus, the subway…) for each device

Autonomy for on the go use cases (full charge)

Calibrated

134

TCL 40R 5G

198

Samsung Galaxy M51

For this series of tests, the smartphone returns to the Faraday cage and our robots repeatedly perform actions linked to one specific use case (such as gaming, video streaming, etc.) at a time. Starting from an 80% charge, all devices are tested until they have expended at least 5% of their battery power.

Autonomy for calibrated use cases (full charge)

Charging

92

TCL 40R 5G

218

Realme GT Neo 5 (240W)
How Charging score is composed

Charging is fully part of the overall battery experience. In some situations where autonomy is at a minimum, knowing how fast you can charge becomes a concern. The DXOMARK Battery charging score is composed of two sub-scores, (1) Full charge and (2) Quick boost.

Wired
Wired
28%
in 30 min
1h25
0 - 80%
2h44
Full charge

Full charge

84

TCL 40R 5G

224

Realme GT Neo 5 (240W)

Full charge tests assess the reliability of the battery power gauge; measure how long and how much power the battery takes to charge from zero to 80% capacity, from 80 to 100% as shown by the UI, and until an actual full charge.

Power consumption and battery level during full charge
The charging curves, in wired and wireless (if available) showing the evolution of the battery level indicator as well as the power consumption in watts during the stages of charging toward full capacity.
Time to full charge
The time to full charge chart breaks down the necessary time to reach 80%, 100% and full charge.

Quick boost

101

TCL 40R 5G

212

Realme GT Neo 5 (240W)

With the phone at different charge levels (20%, 40%, 60%, 80%), Quick boost tests measure the amount of charge the battery receives after being plugged in for 5 minutes. The chart here compares the average autonomy gain from a quick 5-minute charge.

Average autonomy gain for a 5 minute charge (wired)

Efficiency

128

TCL 40R 5G

154

Oppo Reno6 5G
How Efficiency score is composed

The DXOMARK power efficiency score consists of two sub-scores, Charge up and Discharge rate, both of which combine data obtained during robot-based typical usage scenario, calibrated tests and charging evaluation, taking into consideration the device’s battery capacity. DXOMARK calculate the annual power consumption of the product, shown on below graph, which is representative of the overall efficiency during a charge and when in use.

Annual Consumption TCL 40R 5G
4.1 kWh
Efficient
Good
Bad
Inefficient

Charge up

106

TCL 40R 5G

205

Nubia RedMagic 7 Pro

The charge up sub-score is a combination of four factors: the overall efficiency of a full charge, related to how much energy you need to fill up the battery compared to the energy that the battery can provide; the efficiency of the travel adapter when it comes to transferring power from an outlet to your phone; the residual consumption when your phone is fully charged and still plugged into the charger; and the residual consumption of the charger itself, when the smartphone is disconnected from it. The chart here below shows the overall efficiency of a full charge in %.

Overall charge efficiency

Discharge

141

TCL 40R 5G

194

Apple iPhone 14 Pro

The discharge subscore rates the speed of a battery’s discharge during a test, which is independent of the battery’s capacity. It is the ratio of a battery’s capacity divided by its autonomy. A small-capacity battery could have the same autonomy as a large-capacity battery, indicating that the device is well-optimized, with a low discharge rate.

Average discharge current

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