Falling below 100 yuan, LeTV M1 two-way fast charging mobile power supply evaluation
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Speaking of LeTV, the news is full of negative news, such as dragging suppliers’ payment, taking away Yidao funds and directly GG, etc. We will not talk about these laces for the time being. As far as mobile power products are concerned, LeTV used to be the industry benchmark.
The price is slightly lower. LeUPB-211D and LeUPB503T with 18650 batteries, and LeUPB501T and LeUPB502T with "noble" crystal clear shell light and thin soft pack batteries each have their own characteristics.
In April, LeTV Mall launched a brand-new mobile power supply named M1, which also uses soft-pack batteries to take a light and thin route, but the price is higher than the previous noble 199 yuan, and the price of M1 directly fell below 100 yuan. Could it be that another explosion was born?
First, unpacking
Back information parameters, product name: LeTV two-way fast charging mobile power supply 10000mAh M1 white, product model: LeUPB-301N, battery capacity: 10000/10200mAh 38/38.76 Wh (minimum/standard value), rated output capacity: 6500mAh (5V2A down), input parameters: 5V2A/9V2A/12V1.5A (maximum value), output parameters: 5V2A/9V2A/12V1.5A (maximum value), manufacturer: LeTV Zhixin Electronic Technology (Tianjin) Co., Ltd.
As can be seen on the delivery list, the price of the M1 is 99 yuan. Compared with the previous two light and thin mobile power supplies 179/199, the price of the M1 is 99 yuan.
If you tilt the angle slightly, you can see that 4 LED power indicators are placed on the lacquered surface of the upper shell, and the lower part is matte and matte (not skin-like).
Flat shape frame is very smooth similar to cobblestone, back brand parameters are as follows, product name: LeTV two-way fast charging mobile power M1 10000mAh 3.8V, product model: LeUPB-301N, battery capacity: 10000/10200mAh 38/38.76 Wh (minimum/standard value), input parameters: 5V2A/9V2A/12V1.5A (maximum value), output parameters: 5V2A/9V2A/12V1.5A (maximum value), rated output capacity: 6500mAh (5V2A out), manufacturer: LeTV Zhixin Electronic Technology (Tianjin) Co., Ltd.
LeTV M1 has a conventional Type-A output port that supports QC fast charging on the interface layout. The input is MicroUSB + Type-C dual input collocation, taking into account the user requests of old and new devices.
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Disassembly
After the smooth head cover is inserted into the shell, it is fastened by several clips. There are 2 upper and lower edges, a total of 6 clips. The fastening force is very tight and fits well.
Separating the shell, the upper and lower shells are assembled with excellent integrity, and the edges are completely free of staggered layers. The editor even thought it was a whole before opening it.
The shell material is PC + ABS engineering plastic alloy, which has very good impact resistance, toughness and plasticity.
This picture shows the shell structure. The shell contact is divided into two inner and outer layers. The clip is located on the inner layer, so it cannot be removed completely. The battery and the shell retain a large buffer space to resist the impact.
USB high-speed switch of sgmicro.
The one on the left is a single-chip microcomputer, the two red ones fastened by glue below are the NTC temperature probe outlet, and the XB8089G silk screen on the right is a Saixin micro-lithium battery protection chip, integrated with a 17mΩ power tube, which can withstand a maximum of 9A current. It has multiple protection functions such as overcharge protection, overdischarge protection, overheat protection, short circuit, and overcurrent protection, which is equivalent to the common DW01 + 8205 * N.
LeTV M1 uses the recently hot British chip integration solution, British chip IP5318 is a mobile power SOC with input and output fast charging function, integrated Type-c protocol supports single port input and output, integrated QC2.0/3.0 fast charging identification protocol, support DCPbc1.2 Apple Samsung identification protocol, built-in lithium battery charging management, battery power indication, battery charging current up to 4.8A, boost discharge power up to 18W, synchronous boost buck multi-function integrated power solution IC.
The brand of the socket parts is unknown, all of them are through-hole welding, which is more durable and has a good sense of insertion and unplugging.
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III. Performance
Use the charging head network Feilong USB ammeter with electronic load monitoring LeTV M1 output, conventional 5V maximum output performance: 4.93V2.4A@11.8W.
IV. Summary
LeTV M1 two-way fast charging mobile power supply is made of ABS + PC material to create a round pebble shape, and the solid-color shell is composed of glossy and matte surfaces respectively.
In terms of interface, M1 uses conventional Type-A as the output port, and the input is equipped with Type-C + MicroUSB dual input interface, which better takes care of old and new user requests.
The program selected this year’s hot British Chip IP5318 high-integration integrated SOC, and the measured input 18W output 20W performance reached the mainstream level of the same level.
As LeTV’s first cost-effective portable polymer mobile power supply, the previous two fast charging polymers cost close to 200 yuan, while the M1 was equipped with a two-way fast charging dual input interface at a price of 99 yuan, so that consumers would no longer feel out of reach, and the purchase intention would also increase significantly.