Many times that is the issue. Based on what you're describing there are 3 likely possibilities as to why this is not turning on. To test these possibilities you will need a multimeder and be able to use it in voltage mode. The 1st possibility is that this battery you got is cheap and partially defective.
Referencing this pic, switch your multimeter to dc voltage, and with the charging cable plugged in, first place the red probe on one of the red squares (left leg of transistor) and then place the black probe on the green rectangle (casing of charge port). You should read about 5 - 5.4 volts (same voltage as before). 1. Tron08. • 2 yr. ago. If your search for an external charger fails I would highly recommend investing in a high-quality battery bank/pack such as the Anker 313 Power Bank (PowerCore 10K). A battery bank like that has 10,000mah capacity which is over 10x what a standard GBA-SP can hold. My GBA SP does make sound, its just the charger port that has been acting up, I recently just cleaned the motherboard, and put some white vinegar on any rusty looking parts. So I don't know why its acting like this. Clean out the charge port with 99% IPA and a soft bristle toothbrush. This looks like dirty contacts.
Search Newegg.com for game boy advance sp charger. Get fast shipping and top-rated customer service. Battery Replacement for NIN AGS-101 GBA-SP SAM-SPRBP(A) AGS-A
Plays monochrome GB games, GBC games, and GBA games. Problem is that they tend to be listed for ridiculous prices ($80 for decent condition) so you have to hunt for them. AGS-101 models are worth $40-$50 and AGS-001 models are worth $30-$40 or so in decent condition. Cheapest: Install a backlight in a Pocket.
This item: Charger for Gameboy Advance SP, AC Power Adapter Charging Cable Cord for Nintendo DS and Gameboy Advance SP (GBA SP) 5.2V 450mA $7.99 $ 7 . 99 Get it as soon as Friday, Oct 20 Charger for Gameboy Advance SP, AC Adapter for Nintendo NDS and Game Boy Advance SP Systems, Wall Travel Charger Power Cord Charging Cable 5.2V 450mA for GBA SP 4.6 out of 5 stars 5,380 3 offers from $7.64

WTB: Cheap Gameboy Advance SP Charger. By The 1 2 P in forum Buying and Selling Replies: 1 Last Post: 10-31-2011, 08:46 PM. GB Advance SP charger needed and Rob The

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    • gameboy advance sp charger alternative