As we all know, the price of mobile power was always expensive two years ago. 10000mAh sold more than one hundred at a time and it was not fast enough.
However, after Xiaomi's involvement in mobile power, this situation has been significantly changed. Xiaomi first pulled the price of mobile power to the freezing point, and as far as possible to achieve the ultimate product performance, by the majority of consumers alike.
For the 10000mAh fast-charged mobile power supply, Xiaomi’s mobile power supply has so far been introduced in four models. PLM01ZM, PLM02ZM, PLM03ZM, PLM09ZM Of course, these four mobile power supplies have their own aliases.
However, whether it is the appearance or model, the similarity of millet mobile power is very high, it is easy to confuse, which brings a certain degree of difficulty to the average consumer.
Today, these four 10000mAh mobile power sources are dismantled and compared, so that everyone has an in-depth understanding of them from the inside out.
PLM01ZM This model is Xiaomi's first two-way fast-charged mobile power supply, commonly known as 'Miwanao', and is Xiaomi's first mobile power equipped with a Type-C interface.
This product is full of materials, not only has a two-way 18W fast charge, but also uses a higher cost aluminum alloy grinding shell, built-in Tianjin Lishen 4.4V high-voltage batteries; TI TIPS61088 + BQ25895 buck-boost program, with Tianhe FP6601 protocol identification chip can support QC2.0, APPLE2.4A protocol, regardless of appearance or performance, popular.
Millet PLM02ZM is also what we often say millet mobile power 2.
Product appearance, the same aluminum alloy shell + matte treatment, body shape is slightly narrower than the PLM01ZM, slightly longer. equipped with the charging interface is MicroUSB, supports up to 18W input, the same Tianjin Lixin 4.4V high-voltage batteries, but power management The chip was replaced by the ZMI P02Q6RB independently developed by Purple Meters, integrated protocol recognition. The output performance has shrunk slightly and can only reach 15W. The supporting protocols are QC2.0 and APPLE2.1A.
Millet PLM03ZM mobile power commonly known as 10000mAh high matching version.
The appearance needless to say, size and PLM01ZM exactly the same, it should be a common set of molds. Also supports two-way 18W fast charge. God power 4.4V high-voltage batteries, TI TPS61088 + BQ25895 buck-boost program.
This mobile power supply is mainly a major upgrade of the protocol chip. The former FP6601 has been upgraded to the FP6601Q. In addition to QC2.0 and APPLE2.4A, support for QC3.0, FCP has been added. A wider range.
Millet PLM098ZM mobile power is the 'new millet mobile power 2', just listed at the end of last year.
This mobile power supply still uses the most classic aluminum alloy housing of the millet mobile power supply family, but its size is slightly larger than the previous ones. It is mainly a lot longer.
Performance, still can only support 18W fast charge input and 15W fast charge output, and configure two USB-A fast charge output interface, the input selects the Micro USB interface. Internally replaced the power cell, the power chip is purple Independently researched and developed ZMI P03Q7VQ, the protocol chip comes from Tianfan FP6601m and supports QC2.0 and APPLE2.1A protocols.
One, millet mobile power PLM01ZM dismantling (Miwanao)
Millet PLM01ZM mobile power supply and accessories list: mobile power host x1, data line x1, MicroUSB to Type-c adapter x1, instruction manual x1.
Interface, equipped with a USB-A output interface and a Type-C input interface.
At the bottom is the nameplate information, model PLM01ZM, input 5V2.0A/9V2.0A/12V1.5A, the output is also 5V2.0A/9V2.0A/12V1.5A, clearly marked bi-directional fast charge, battery capacity 10000mAh minimum /10180mAh conventional value, battery energy 38.5Wh minimum /39.19Wh conventional value, also marked 5V1A rated output capacity of 7100mAh, conversion rate> 90%, the battery is an ultra-high voltage high density polymer battery with a voltage equalization of 3.85V, Manufacturer Jiangsu Zimei Electronic Technology Co., Ltd.
After ChargerLAB POWER-Z KT001 test, Xiaomi PLM01ZM supports APPLE2.4A, QC2.0 and USB DCP protocols.
According to the past routines, the crowbar first opens the panel on the side of the socket.
Then open the bottom nameplate panel.
Socket panel 撬 opening, visible in the LED hole soft light pad.
At the bottom, two screws are used to tighten the inner parts to the aluminum housing.
Screws are common cross type and can be easily disassembled.
Unscrew the screw, push and pull to see the internal structure, is a plastic inner frame.
On the cell side, Xiaomi PLM01ZM uses two pieces of Lishen LISHEN ultra high voltage high density polymer battery, 3.85V voltage equalization, full voltage 4.40V, the same volume can provide a larger energy density ratio and high voltage platform Better discharge efficiency. Battery production lot M54.
On the chip side, the Texas Instruments TI TPS61088 synchronous rectifying boost chip was selected. This chip is packaged in a 20-pin VQFN and equipped with an 11mΩ power switch and a 13mΩ rectifier switch. The input is the battery side supporting the single lithium 2.7V. ~Multilithium 12V, Output Voltage Range 4.5V~12.6V, 5V9V12V All-Purpose. Has a switching current capability of 10A. View the official PDF efficiency table below, 5V/9V/12V can exceed 91% on the board side at 2A The efficiency value is very scary. It is a highly integrated, high efficiency, low resistance synchronous rectifying boost chip.
The buck input charge is also from Texas Instruments's BQ25895. The chip can provide up to 5A of charge current, 2A charge efficiency up to 93%, input up to 14V, integrated analog-to-digital converter with voltage temperature current monitoring The function is used for security protection. At the same time, the mode can be switched to the external output current of the boost chip. Romans dual output is to switch the input charging chip switching mode to the output state to achieve dual output. It is usually switched back to charging. Enter the status.
The protocol chip FR2CAK is from Taiwan's Fitipower FP6601, which is a chip that integrates the QC2.0 fast charge protocol recognition and Apple protocol recognition. At that time, the industry was able to handle fast charge handshakes and correctly identify Apple devices. The chip, this chip has two kinds of package, it is SFP-8 big eight leg FP6600, SOT-23-6 small six leg FP6601.
Built-in ABOV microcontroller.
Both inductors are integrally molded inductors.
The NTC thermistor extends directly into the middle of the two batteries. Monitoring the battery overheating will shut off the output.
Millet mobile power battery pack PACK process has always been the industry's best, the front edge of the battery pack is covered with masking tape insulation protection, two batteries a total of four nickel belts, here to talk about the industry's common battery pack connection: 1 Firstly, the nickel strips of the two batteries are spot-welded in parallel, and then the long nickel strips are folded and spot-welded to the PCB. 2 The nickel strips of the two batteries are also spot-welded in parallel and then the wire fly-wires are soldered onto the PCB. Although manual assembly is convenient, long wires will reduce the efficiency value, and the folded nickel tape will also pose potential safety problems. This high-quality version of millet connects two batteries by means of spot welding on the front and back sides of the PCB. With the shortest length and crease-free, it is worthy of praise.
Type-C interface micro-magnetic reaction, large USB socket without magnetic response.
