all-sun BT21 Digital battery tester LCD display about 20-120mA digital battery instrument at 18-28 degree battery checker
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Lower than average, a lotReliable seller: 100%
You can safely buy here, Globe Meter
- More than 9 years of seller experience
- High general feedback score (13935)
- Customers are satisfied by communication
- Items match description
- High shipping speed
- 1.1% of customers were dissatisfied over the last 3 months
Customer reviews
5
V
V***o
I was pleased with the order. The tester itself liked, changed immediately to a lithium battery CR2032, barely slipped inside the case but climbed into the disassemble device, because. In the kit there were no LR44 batteries, the seller and it is indicated that it is without batteries. By the tester itself: measures by load, 3 operating modes small current, medium, and high. The battery on the multimeter showed 1,3 volts. The tester immediately showed a leak below 1 volt. In general, the household appliance is useful. It came very quickly, I recommend the seller!
June 07, 2021
D
D***n
Came fast, the quality is good, compact, its functions perform properly. Seller responsive, responds quickly. The only "but"-there are no power supplies included (2 PCs LR44), it is not very critical, but still... I definitely recommend to buy-the only model I found with the specified and modified (3 gradations for different types of batteries) load testing, which allows you to adequately assess their (batteries) condition.
December 22, 2015
V
V***s
The product is very nice. It actually shows battery charge level under load, not without as many other testers do. Load can be set manually according to battery type. Build quality is nice, better than it looks on the pictures. Size is small. It barely fits 18650 Li-Ion rechargeable battery at the max opening of the jaw, not longer. Recommend this tester. It is better than others.
January 24, 2021
V
V***v
Delivery to Ukraine-44 days from the moment of payment. The tester fully corresponds to its description. Allows you to measure the battery under load (selected by a switch depending on the type of battery), easily fits into your pocket. Two LR44 elements are required for operation (not included in the package). In general, the purchase is satisfied. Thank you.
March 07, 2021
S
S***V
The most successful model of battery testers. The height of the tested elements is limited to 60 millimeters. Voltage measurement range 1.2-12 v. The load of the tested elements is changed by means of a switch (3 positions) located on the right end. The load selection table is on the back of the tester. The seller carefully packed the order.
April 13, 2019
S
S***V
In my opinion, this is the best model from similar testers present on the market. The advantages include quality, compact and informative. To cons-limiting the maximum size of the measured batteries to the size of the AA element. Includes 2 LR44 batteries and English instruction.
December 18, 2018
A
A***n
Very useful thing. Before that, i took the shooter and lcd for 1.5 and 9, but they are not suitable for this. This tester with its power, tests the activation of the load for a few seconds, the display shows the drawdown in real time. I didn't find another one.
March 08, 2019
Y
Y***N
Logistics: AliExpress Standard Shipping
I can not say anything yet, but something measures. For me, this is the right thing. I tried different devices and formulas to determine the charge and capacity of the batteries and unfortunately the breakdown of readings and calculations is very large.
February 24, 2022
A
A***o
Pretty fast shipping!
The tester is sealed in a blister, instruction, batteries included.
The device is not ashamed to take for a gift.
There is nothing to measure the accuracy of the readings, so trust Chinese engineers)
You can take it.
October 21, 2019
D
D***v
Excellent. The device works. Delivered very quickly. Recommend.
Great. The device works. I recommend. Shipping is very fast and tracked.
August 12, 2019
A
A***z
I tested it a bit and seems work well, I tested with regular AA/AAA batteries and also button batteries. it is small more than I thought and you can carry it in your pocket. the shipping toke 10 days to arrive to Spain
February 01, 2021
P
P***e
When the load switch is set correctly for 9V battery (M setting), it reads way to low indicating a bad battery--when in actual fact the battery is well above 9V... Disappointing as I paid the high price of NZ$16.
May 13, 2021
A
A***n
Ordered september 23, received october 10. Came during this time in transnistria. Packing is good, working. Shows like exactly. At home i'll check with testers. Thanks to the seller-quickly and accurately.
October 11, 2019
S
S***z
Very good battery power indicator. Enables measurement under obciąże niem. Are 3 option to choose according to the kind of battery which is rare in such equipment. Is accurate and wearable. Recommend.
March 29, 2021
A
A***h
Excellent tester. It is on its own batteries, they are included, you can test under different load for different types of batteries. Just turn off do not forget, or then quickly sit down.
May 31, 2019
M
M***y
Logistics: AliExpress Standard Shipping
Cool device, shows the real charge of batteries. From a funny old battery under the multimeter shows that it is as if it is new, but this device shows 0.1 V.
September 15, 2021
M
M***i
A beautiful and wonderful product arrived as it is in the picture and very quickly and I am fully satisfied and worthy⭐️⭐️⭐️⭐️⭐And thank you.
March 26, 2019
B
B***.
Checked the aa and aaa batteries of one manufacturer, the indicators were 1.59 v and 1.57 v. It's all right. Satisfied with the device.
April 29, 2019
R
R***v
Item high-standard! Pretty packaging. Delivery was notably swift. An exceptionally good seller. Recommended. Thanks. A++!
May 28, 2019
g
g***r
It came very quickly. Complete with batteries. Shows exactly. It is convenient to use. Purchase satisfied. Recommend.
May 31, 2019
K
K***v
Logistics: AliExpress Standard Shipping
The order has been received. The quality is very good. I'm happy with the purchase. Thank you so much to the seller.
December 24, 2021
M
M***v
Fast shipping. Batteries included. The device is ready to work immediately after unpacking. Seller recommend.
July 01, 2019
J
J***o
Good product arrive in Bogotá Colombia in less time than expected, works well, very practical and functional
September 27, 2019
G
G***v
Shipping 16 days. The device will be measured accurately. I recommend the seller and the store.
July 20, 2019
E
E***m
Logistics: AliExpress Standard Shipping
Works. Apparently really under load voltage shows. Multimeter without load voltage above shows.
December 24, 2021
M
M***v
The device works. Only the monitor is small and the shadow from the body prevents reading.
November 06, 2018
m
m***l
Good product, you have to get used to taking it in hand but after a few tries, it's fine.
December 23, 2019
O
O***y
Satisfied with the quality of this product. Satisfied with the quality of this product.
December 12, 2018
A
A***n
The tester received, came in 23 days, shows the measurements correctly. I recommend.
June 03, 2019
V
V***o
Real battery tester! Measures voltage under load of 20, 75 and 620 ohms. Advise!
March 26, 2021
G
G***A
Great Tester helped me with batteries and that were with half life.
September 28, 2019
R
R***l
Logistics: AliExpress Saver Shipping
All OK, thank you.
July 08, 2021
V
V***A
Logistics: AliExpress Standard Shipping
Without batteries
January 04, 2022
S
S***v
thanks!
February 17, 2022
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Product specifications
- Brand Name: all sun
- Certification: NONE
- Origin: CN(Origin)
- DIY Supplies: ELECTRICAL
- Type: Electronic Device Battery Tester
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