HKJ
(HKJ)
March 3, 2019, 6:56pm
299
robk:
H, I have just started playing with a charger titled “Allmaybe TC2”. It seems a worthwhile successor to my excellent Xtar VC2. It does Li and Nimh and has a useful test function that charges, reads discharge maH, and recharges. I would like to recommend it for your waiting list. Thanks.
I wrote that review some time ago, but have not published it yet.
d_t_a
(d_t_a)
March 5, 2019, 11:00am
300
Hope to see the review of the AllMaybe TC2 really soon…
marty1
(marty1)
April 21, 2019, 10:41pm
302
Dear HKJ,
I’m impressed by your battery charger reviews.
On Tue, 02/20/2018 - 07:22 you wrote that you were working on a review of the:
LiitoKala Lii-NL4
I am very curious if you have succeeded in testing it and what your findings are with the charger?
My personal experience is that NiMH batteries get rather hot to the touch in the last charging phase.
Keep up the great work.
Best of regards,
Marty
BlueSwordM
(BlueSwordM)
April 21, 2019, 4:01pm
303
This is actually normal.
This is a property of NiMH cells that make them easy to end charge when full.
marty1
(marty1)
April 21, 2019, 10:24pm
304
How hot, much degrees Centigrade may the batteries become? They get so hot that I almost can’t keep my hand on them for very long.
At what temperature will the NiMH batteries be harmed by heat?
BlueSwordM
(BlueSwordM)
April 21, 2019, 10:46pm
305
40-45C, which means after some time, it does start to hurt if you touch them.
If they’re only hot for a short period of time, it should not be a problem.
60C is the threshold.
Dear HKJ,
do you have in line to review the next charges: Xtar VC4S, MiBoxer Upgrade C4-12?
Blggg
(Blggg)
May 12, 2019, 4:08am
307
Also the recently released VP4C.
HKJ
(HKJ)
May 12, 2019, 5:08am
308
Xtar has promised my some chargers for review, but I have not received anything yet.
Candil
(Candil)
June 9, 2019, 12:48am
309
Hello HKJ is the Nitecore F4 charger in this years list of chargers to be reviewed? Thanks
d_t_a
(d_t_a)
June 10, 2019, 9:29am
311
Would like to see reviews of the above chargers, and also the new Liitokala Lii-500S… But I understand they will likely take some time…
HKJ
(HKJ)
June 10, 2019, 9:30am
312
It will, but the VC4S is on the test stand at the current time.
contactcr
(contactcr)
October 21, 2019, 7:13pm
313
Vapcell S4 plus on your radar?
d_t_a
(d_t_a)
October 22, 2019, 9:26am
314
+1 on this Vapcell S4 Plus charger (I’d think that Vapcell will be glad to send you one for testing since they’ve been sending you their batteries to test…), which looks like it has some promising specs:
- 4x 3A charging (similar to Miboxer C4-12 or SkyRC MC3000)
- discharge test at 1A (2 slots) or 0.5A (4 slots?)
=> this seems interesting since very few chargers can discharge at 1A
(SkyRC MC3000 of course can discharge 4x 1A or 1x 2A), but other chargers that discharge at 1A may be discontinued (eg. Miboxer C2-4000); and the Opus BT-C3100 can also discharge at 1A but have a problem of heating up and “pausing” the discharging, which results in incorrect/too high capacity readout.
- internal resistance (would like to know how precise it is); we understand that most chargers might not be too accurate in DC IR test, but a ‘relatively consistent’ IR reading result would be good enough for most people.
hank
(hank)
October 25, 2019, 3:57pm
316
Here’s a teardown on the Apple USB charger. He praised its quality highly,
Apple’s power adapter is clearly a high-quality power supply designed to produce carefully filtered power. Apple has obviously gone to extra effort to reduce EMI interference, probably to keep the charger from interfering with the touchscreen.[16] When I opened the charger up, I expected to find a standard design, but I’ve compared the charger to the Samsung charger and several other high-quality industry designs,[17] and Apple goes beyond these designs in several ways.
I was surprised to realize how enormous Apple’s profit margins must be on these chargers. These chargers sell for about $30 (if not counterfeit), but that must be almost all profit. Samsung sells a very similar cube charger for about $6-$10, which I also disassembled (and will write up details later). The Apple charger is higher quality and I estimate has about a dollar’s worth of additional components inside.[14] But it sells for $20 more.
HKJ
(HKJ)
October 25, 2019, 4:22pm
317
Barkuti
(Barkuti)
October 28, 2019, 3:05am
318
https://www.aliexpress.com/item/33031980968.html
Hello! Henrik, would you mind sharing some preview of this charger's testing results? If possible, of course. I asked for its review a couple months ago .
Also, is the EAIEP 26F cells review coming soon? :-D
Thanks.